Top 100 PSLE Vocabulary List resources can make Grade 6 physical science easier to read and explain. This guide focuses on light vocabulary, sound vocabulary, waves, reflection, refraction, frequency, amplitude, pitch, lenses, colour and hearing. These terms appear across upper-primary science, STEM activities and informational texts.
Current wave-learning resources for this age group repeatedly foreground amplitude, wavelength, frequency, crest, trough, reflection, refraction, pitch and vibration. This article expands that search language into a complete Grade 6 system covering wave behaviour, optics, colour, sound, hearing technology and investigation vocabulary.
This child is distinct from the Science Investigation and Experiment Words list. That owner teaches method and evidence broadly; this page owns the content vocabulary of light, sound and waves.
How to Use This Top 100 List
Alicia, Tricia and Kai Kai use this page as an active vocabulary system rather than a glossary. Each term is learned through definition, context, contrast, transfer, oral explanation and delayed retrieval. The goal is not merely to recognise a word on this page, but to use it accurately when the surrounding Grade 6 text, diagram, experiment or explanation changes.
Study ten terms at a time, then mix categories. Ask which words describe processes, structures, measurements, locations, evidence, causes or results. Build short cloze passages and compare neighbouring terms. This helps the learner organise a scientific vocabulary network instead of memorising isolated labels.
Wave Foundations
1. wave
Meaning: a disturbance that transfers energy from one place to another. Model: Alicia drew a wave moving across a rope. Waves transfer energy without carrying matter along overall.
Context test: Cover wave and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare wave with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing wave. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use wave in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain wave aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where wave matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Waves transfer energy without carrying matter along overall.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
2. energy
Meaning: the capacity to cause change or do work. Model: Kai Kai traced energy through a wave. Waves carry energy.
Context test: Cover energy and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare energy with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing energy. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use energy in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain energy aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where energy matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Waves carry energy.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
3. medium
Meaning: a material through which a mechanical wave travels. Model: Tricia compared sound travelling through air and water. Light does not require a material medium.
Context test: Cover medium and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare medium with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing medium. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use medium in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain medium aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where medium matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Light does not require a material medium.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
4. vibration
Meaning: a repeated back-and-forth motion. Model: Alicia produced vibration with a tuning fork. Vibrations can generate sound.
Context test: Cover vibration and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare vibration with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing vibration. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use vibration in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain vibration aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where vibration matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Vibrations can generate sound.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
5. amplitude
Meaning: the maximum displacement from the resting position. Model: Kai Kai compared wave amplitudes. Amplitude relates to wave energy.
Context test: Cover amplitude and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare amplitude with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing amplitude. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use amplitude in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain amplitude aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where amplitude matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Amplitude relates to wave energy.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
6. wavelength
Meaning: the distance between corresponding points on successive waves. Model: Tricia measured wavelength from crest to crest. Wavelength and frequency are related.
Context test: Cover wavelength and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare wavelength with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing wavelength. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use wavelength in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain wavelength aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where wavelength matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Wavelength and frequency are related.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
7. frequency
Meaning: the number of wave cycles passing a point each second. Model: Alicia compared frequencies. Frequency is measured in hertz.
Context test: Cover frequency and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare frequency with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing frequency. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use frequency in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain frequency aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where frequency matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Frequency is measured in hertz.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
8. crest
Meaning: the highest point of a transverse wave. Model: Kai Kai labelled the crest. Crests repeat every wavelength.
Context test: Cover crest and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare crest with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing crest. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use crest in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain crest aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where crest matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Crests repeat every wavelength.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
9. trough
Meaning: the lowest point of a transverse wave. Model: Tricia labelled the trough. Troughs alternate with crests.
Context test: Cover trough and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare trough with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing trough. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use trough in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain trough aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where trough matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Troughs alternate with crests.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
10. pulse
Meaning: a single disturbance travelling through a medium. Model: Alicia sent one pulse along a spring. A pulse differs from a continuous wave.
Context test: Cover pulse and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare pulse with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing pulse. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use pulse in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain pulse aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where pulse matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. A pulse differs from a continuous wave.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Wave Behaviour
11. reflection
Meaning: the change of direction when a wave bounces from a boundary. Model: Kai Kai observed reflection from a mirror. Sound can reflect too.
Context test: Cover reflection and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare reflection with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing reflection. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use reflection in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain reflection aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where reflection matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Sound can reflect too.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
12. absorption
Meaning: the taking in of wave energy by a material. Model: Tricia compared dark and shiny surfaces for light absorption. Absorbed energy may become heat.
Context test: Cover absorption and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare absorption with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing absorption. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use absorption in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain absorption aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where absorption matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Absorbed energy may become heat.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
13. transmission
Meaning: the passage of a wave through a material or boundary. Model: Alicia tested light transmission through plastic. Transparent materials transmit much light.
Context test: Cover transmission and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare transmission with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing transmission. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use transmission in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain transmission aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where transmission matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Transparent materials transmit much light.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
14. scattering
Meaning: the redirection of waves in many directions by particles or rough surfaces. Model: Kai Kai linked sky colour with light scattering. Scattering depends on wavelength and particle size.
Context test: Cover scattering and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare scattering with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing scattering. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use scattering in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain scattering aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where scattering matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Scattering depends on wavelength and particle size.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
15. diffraction
Meaning: the spreading or bending of waves around obstacles or through openings. Model: Tricia observed water-wave diffraction in a tray. Long wavelengths diffract more strongly relative to gap size.
Context test: Cover diffraction and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare diffraction with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing diffraction. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use diffraction in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain diffraction aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where diffraction matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Long wavelengths diffract more strongly relative to gap size.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
16. interference
Meaning: the combination of two or more waves where they overlap. Model: Alicia watched ripples interfere on water. Interference can strengthen or cancel waves.
Context test: Cover interference and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare interference with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing interference. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use interference in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain interference aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where interference matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Interference can strengthen or cancel waves.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
17. boundary
Meaning: the surface or region separating two materials or conditions. Model: Kai Kai traced what happened when a wave reached a boundary. Reflection and transmission occur at boundaries.
Context test: Cover boundary and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare boundary with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing boundary. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use boundary in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain boundary aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where boundary matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Reflection and transmission occur at boundaries.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
18. incident wave
Meaning: a wave travelling towards a boundary. Model: Tricia labelled the incident wave on a diagram. Incident means arriving.
Context test: Cover incident wave and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare incident wave with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing incident wave. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use incident wave in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain incident wave aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where incident wave matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Incident means arriving.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
19. reflected wave
Meaning: a wave that has bounced back from a boundary. Model: Alicia labelled the reflected wave. Its direction changes.
Context test: Cover reflected wave and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare reflected wave with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing reflected wave. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use reflected wave in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain reflected wave aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where reflected wave matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Its direction changes.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
20. wave speed
Meaning: the distance a wave travels per unit time. Model: Kai Kai compared wave speed in different media. Wave speed depends on medium and wave type.
Context test: Cover wave speed and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare wave speed with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing wave speed. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use wave speed in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain wave speed aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where wave speed matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Wave speed depends on medium and wave type.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Light Foundations
21. light
Meaning: visible electromagnetic radiation that can be detected by human eyes. Model: Tricia observed light from a lamp. Visible light is one part of the spectrum.
Context test: Cover light and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare light with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing light. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use light in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain light aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where light matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Visible light is one part of the spectrum.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
22. ray
Meaning: an imaginary straight line showing the direction light travels. Model: Alicia drew a light ray. Ray diagrams simplify light paths.
Context test: Cover ray and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare ray with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing ray. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use ray in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain ray aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where ray matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Ray diagrams simplify light paths.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
23. beam
Meaning: a group of light rays travelling together. Model: Kai Kai shone a narrow beam across the room. Beams can diverge or converge.
Context test: Cover beam and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare beam with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing beam. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use beam in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain beam aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where beam matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Beams can diverge or converge.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
24. luminous
Meaning: producing its own light. Model: Tricia classified the Sun as luminous. A mirror is not luminous.
Context test: Cover luminous and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare luminous with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing luminous. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use luminous in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain luminous aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where luminous matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. A mirror is not luminous.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
25. transparent
Meaning: allowing most visible light to pass through with clear images. Model: Alicia looked through transparent glass. Transparency depends on material and wavelength.
Context test: Cover transparent and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare transparent with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing transparent. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use transparent in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain transparent aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where transparent matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Transparency depends on material and wavelength.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
26. translucent
Meaning: allowing some light through but scattering it so images are unclear. Model: Kai Kai tested translucent paper. Translucent materials blur detail.
Context test: Cover translucent and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare translucent with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing translucent. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use translucent in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain translucent aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where translucent matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Translucent materials blur detail.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
27. opaque
Meaning: blocking visible light from passing through. Model: Tricia used an opaque card to make a shadow. Opaque materials may still transmit other wavelengths.
Context test: Cover opaque and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare opaque with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing opaque. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use opaque in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain opaque aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where opaque matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Opaque materials may still transmit other wavelengths.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
28. shadow
Meaning: a darker region formed where an opaque object blocks light. Model: Alicia measured the shadow length. Shadow shape depends on source and object.
Context test: Cover shadow and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare shadow with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing shadow. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use shadow in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain shadow aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where shadow matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Shadow shape depends on source and object.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
29. spectrum
Meaning: a range of wavelengths or colours arranged by wavelength. Model: Kai Kai observed a visible spectrum. Spectrum has broader scientific uses.
Context test: Cover spectrum and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare spectrum with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing spectrum. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use spectrum in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain spectrum aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where spectrum matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Spectrum has broader scientific uses.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
30. white light
Meaning: visible light containing many wavelengths that can be separated into colours. Model: Tricia passed white light through a prism. White light is a mixture of visible wavelengths.
Context test: Cover white light and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare white light with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing white light. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use white light in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain white light aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where white light matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. White light is a mixture of visible wavelengths.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Reflection And Images
31. mirror
Meaning: a smooth reflective surface that forms images by reflecting light. Model: Alicia used a mirror in the investigation. Mirrors can be flat or curved.
Context test: Cover mirror and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare mirror with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing mirror. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use mirror in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain mirror aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where mirror matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Mirrors can be flat or curved.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
32. plane mirror
Meaning: a flat mirror. Model: Kai Kai compared images in a plane mirror. Plane mirrors form virtual upright images.
Context test: Cover plane mirror and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare plane mirror with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing plane mirror. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use plane mirror in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain plane mirror aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where plane mirror matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Plane mirrors form virtual upright images.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
33. angle of incidence
Meaning: the angle between an incoming ray and the normal. Model: Tricia measured the angle of incidence. Angles are measured from the normal.
Context test: Cover angle of incidence and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare angle of incidence with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing angle of incidence. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use angle of incidence in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain angle of incidence aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where angle of incidence matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Angles are measured from the normal.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
34. angle of reflection
Meaning: the angle between a reflected ray and the normal. Model: Alicia compared it with the angle of incidence. The two angles are equal for specular reflection.
Context test: Cover angle of reflection and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare angle of reflection with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing angle of reflection. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use angle of reflection in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain angle of reflection aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where angle of reflection matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. The two angles are equal for specular reflection.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
35. normal
Meaning: an imaginary line perpendicular to a surface at the point where a ray meets it. Model: Kai Kai drew the normal first. Angles of incidence and reflection use it.
Context test: Cover normal and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare normal with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing normal. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use normal in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain normal aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where normal matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Angles of incidence and reflection use it.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
36. image
Meaning: a representation of an object formed by light. Model: Tricia described the image in the mirror. Images can be real or virtual.
Context test: Cover image and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare image with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing image. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use image in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain image aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where image matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Images can be real or virtual.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
37. virtual image
Meaning: an image formed where light rays only appear to meet. Model: Alicia identified the plane-mirror image as virtual. Virtual images cannot be projected onto a screen.
Context test: Cover virtual image and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare virtual image with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing virtual image. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use virtual image in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain virtual image aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where virtual image matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Virtual images cannot be projected onto a screen.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
38. law of reflection
Meaning: the rule that angle of incidence equals angle of reflection. Model: Kai Kai tested the law of reflection. Both angles are measured from the normal.
Context test: Cover law of reflection and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare law of reflection with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing law of reflection. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use law of reflection in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain law of reflection aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where law of reflection matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Both angles are measured from the normal.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
39. specular reflection
Meaning: reflection from a smooth surface that preserves a clear image. Model: Tricia saw specular reflection in a mirror. Smooth surfaces reflect in an organised direction.
Context test: Cover specular reflection and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare specular reflection with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing specular reflection. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use specular reflection in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain specular reflection aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where specular reflection matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Smooth surfaces reflect in an organised direction.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
40. diffuse reflection
Meaning: reflection from a rough surface that scatters light in many directions. Model: Alicia linked diffuse reflection with seeing paper from many angles. It does not mean light is absorbed completely.
Context test: Cover diffuse reflection and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare diffuse reflection with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing diffuse reflection. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use diffuse reflection in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain diffuse reflection aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where diffuse reflection matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. It does not mean light is absorbed completely.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Refraction And Lenses
41. lens
Meaning: a transparent object shaped to bend light in a controlled way. Model: Kai Kai used a lens to focus light. Lenses use refraction.
Context test: Cover lens and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare lens with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing lens. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use lens in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain lens aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where lens matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Lenses use refraction.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
42. convex lens
Meaning: a lens thicker in the middle that can converge parallel light rays. Model: Tricia focused light with a convex lens. Convex lenses can magnify.
Context test: Cover convex lens and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare convex lens with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing convex lens. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use convex lens in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain convex lens aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where convex lens matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Convex lenses can magnify.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
43. concave lens
Meaning: a lens thinner in the middle that spreads light rays apart. Model: Alicia traced rays through a concave lens. It is a diverging lens.
Context test: Cover concave lens and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare concave lens with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing concave lens. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use concave lens in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain concave lens aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where concave lens matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. It is a diverging lens.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
44. focus
Meaning: the process or point of bringing rays together or forming a sharp image. Model: Kai Kai adjusted the lens to focus the image. Focus can be noun or verb.
Context test: Cover focus and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare focus with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing focus. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use focus in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain focus aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where focus matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Focus can be noun or verb.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
45. focal point
Meaning: the point where parallel rays converge or appear to diverge after passing through a lens. Model: Tricia marked the focal point. Lens shape determines focal length.
Context test: Cover focal point and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare focal point with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing focal point. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use focal point in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain focal point aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where focal point matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Lens shape determines focal length.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
46. refraction
Meaning: the bending of a wave when its speed changes entering a different medium. Model: Alicia saw a straw appear bent in water because of refraction. Light changes direction at an angle.
Context test: Cover refraction and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare refraction with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing refraction. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use refraction in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain refraction aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where refraction matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Light changes direction at an angle.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
47. prism
Meaning: a transparent optical object with flat angled surfaces that refract light. Model: Kai Kai passed white light through a prism. Prisms can separate colours.
Context test: Cover prism and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare prism with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing prism. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use prism in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain prism aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where prism matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Prisms can separate colours.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
48. dispersion
Meaning: the separation of light into colours because different wavelengths refract by different amounts. Model: Tricia observed dispersion through the prism. Dispersion creates spectra.
Context test: Cover dispersion and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare dispersion with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing dispersion. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use dispersion in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain dispersion aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where dispersion matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Dispersion creates spectra.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
49. magnify
Meaning: make an image appear larger. Model: Alicia used a convex lens to magnify the print. Magnification changes apparent size.
Context test: Cover magnify and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare magnify with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing magnify. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use magnify in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain magnify aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where magnify matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Magnification changes apparent size.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
50. optical
Meaning: related to light, vision or devices that control light. Model: Kai Kai compared optical instruments. Optics is the science of light.
Context test: Cover optical and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare optical with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing optical. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use optical in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain optical aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where optical matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Optics is the science of light.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Colour And Electromagnetic Spectrum
51. colour
Meaning: the visual experience produced by different mixtures and wavelengths of visible light. Model: Tricia compared colours under different lighting. Colour depends on light and surfaces.
Context test: Cover colour and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare colour with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing colour. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use colour in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain colour aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where colour matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Colour depends on light and surfaces.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
52. primary colour
Meaning: one of a set of colours used as basic components for mixing, depending on the colour system. Model: Alicia learned red, green and blue as primary colours of light. Paint and light use different primary systems.
Context test: Cover primary colour and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare primary colour with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing primary colour. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use primary colour in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain primary colour aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where primary colour matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Paint and light use different primary systems.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
53. secondary colour
Meaning: a colour produced by mixing two primary colours in a given system. Model: Kai Kai mixed two light colours to produce a secondary colour. The result depends on additive or subtractive mixing.
Context test: Cover secondary colour and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare secondary colour with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing secondary colour. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use secondary colour in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain secondary colour aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where secondary colour matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. The result depends on additive or subtractive mixing.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
54. visible spectrum
Meaning: the range of electromagnetic wavelengths visible to human eyes. Model: Tricia identified the visible spectrum. It is only a small part of the electromagnetic spectrum.
Context test: Cover visible spectrum and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare visible spectrum with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing visible spectrum. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use visible spectrum in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain visible spectrum aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where visible spectrum matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. It is only a small part of the electromagnetic spectrum.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
55. infrared
Meaning: electromagnetic radiation with wavelengths longer than visible red light. Model: Alicia learned that warm objects emit infrared radiation. Human eyes cannot see infrared directly.
Context test: Cover infrared and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare infrared with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing infrared. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use infrared in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain infrared aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where infrared matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Human eyes cannot see infrared directly.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
56. ultraviolet
Meaning: electromagnetic radiation with wavelengths shorter than visible violet light. Model: Kai Kai discussed ultraviolet from the Sun. Too much UV exposure can damage skin and eyes.
Context test: Cover ultraviolet and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare ultraviolet with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing ultraviolet. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use ultraviolet in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain ultraviolet aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where ultraviolet matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Too much UV exposure can damage skin and eyes.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
57. electromagnetic wave
Meaning: a wave made of changing electric and magnetic fields that can travel through a vacuum. Model: Tricia classified light as an electromagnetic wave. It does not need a material medium.
Context test: Cover electromagnetic wave and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare electromagnetic wave with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing electromagnetic wave. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use electromagnetic wave in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain electromagnetic wave aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where electromagnetic wave matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. It does not need a material medium.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
58. filter
Meaning: a material or device that selectively transmits some wavelengths and absorbs or reflects others. Model: Alicia used a red filter. Filters change the light reaching the eye.
Context test: Cover filter and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare filter with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing filter. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use filter in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain filter aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where filter matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Filters change the light reaching the eye.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
59. pigment
Meaning: a substance that selectively absorbs and reflects wavelengths, creating colour. Model: Kai Kai compared paint pigments. Pigments work by subtractive colour.
Context test: Cover pigment and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare pigment with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing pigment. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use pigment in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain pigment aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where pigment matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Pigments work by subtractive colour.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
60. rainbow
Meaning: an arc of colours formed by refraction, reflection and dispersion of sunlight in water droplets. Model: Tricia explained how a rainbow forms. A rainbow combines several optical processes.
Context test: Cover rainbow and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare rainbow with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing rainbow. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use rainbow in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain rainbow aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where rainbow matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. A rainbow combines several optical processes.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Sound Foundations
61. sound
Meaning: a mechanical wave produced by vibrations and detected by hearing. Model: Alicia heard sound from a vibrating speaker. Sound needs a medium.
Context test: Cover sound and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare sound with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing sound. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use sound in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain sound aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where sound matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Sound needs a medium.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
62. sound wave
Meaning: a pressure wave travelling through a medium. Model: Kai Kai modelled a sound wave in a spring. In air, sound is mainly longitudinal.
Context test: Cover sound wave and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare sound wave with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing sound wave. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use sound wave in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain sound wave aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where sound wave matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. In air, sound is mainly longitudinal.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
63. compression
Meaning: a region of a longitudinal wave where particles are closer together. Model: Tricia labelled a compression. Compressions alternate with rarefactions.
Context test: Cover compression and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare compression with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing compression. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use compression in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain compression aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where compression matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Compressions alternate with rarefactions.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
64. rarefaction
Meaning: a region of a longitudinal wave where particles are farther apart. Model: Alicia labelled a rarefaction. Rarefactions have lower pressure.
Context test: Cover rarefaction and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare rarefaction with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing rarefaction. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use rarefaction in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain rarefaction aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where rarefaction matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Rarefactions have lower pressure.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
65. pitch
Meaning: how high or low a sound is perceived to be. Model: Kai Kai linked higher frequency with higher pitch. Pitch is a perception related to frequency.
Context test: Cover pitch and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare pitch with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing pitch. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use pitch in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain pitch aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where pitch matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Pitch is a perception related to frequency.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
66. loudness
Meaning: the perceived strength of a sound. Model: Tricia compared loudness at different distances. Loudness is related to amplitude and hearing.
Context test: Cover loudness and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare loudness with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing loudness. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use loudness in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain loudness aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where loudness matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Loudness is related to amplitude and hearing.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
67. volume
Meaning: an everyday term for perceived sound level or audio output setting. Model: Alicia lowered the volume. In physics, loudness is more precise than volume.
Context test: Cover volume and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare volume with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing volume. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use volume in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain volume aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where volume matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. In physics, loudness is more precise than volume.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
68. echo
Meaning: a reflected sound heard separately from the original. Model: Kai Kai shouted and heard an echo from the wall. An echo requires enough delay.
Context test: Cover echo and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare echo with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing echo. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use echo in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain echo aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where echo matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. An echo requires enough delay.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
69. resonance
Meaning: a strong vibration response when a system is driven near its natural frequency. Model: Tricia heard resonance in a musical instrument. Resonance can amplify sound.
Context test: Cover resonance and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare resonance with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing resonance. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use resonance in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain resonance aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where resonance matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Resonance can amplify sound.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
70. noise
Meaning: unwanted, irregular or distracting sound. Model: Alicia measured background noise. Noise can affect hearing and concentration.
Context test: Cover noise and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare noise with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing noise. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use noise in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain noise aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where noise matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Noise can affect hearing and concentration.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Hearing And Sound Technology
71. hertz
Meaning: the unit of frequency equal to one cycle per second. Model: Kai Kai measured frequency in hertz. The symbol is Hz.
Context test: Cover hertz and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare hertz with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing hertz. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use hertz in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain hertz aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where hertz matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. The symbol is Hz.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
72. decibel
Meaning: a logarithmic unit commonly used to express sound level. Model: Tricia compared sound levels in decibels. A small numerical increase can represent a large physical change.
Context test: Cover decibel and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare decibel with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing decibel. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use decibel in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain decibel aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where decibel matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. A small numerical increase can represent a large physical change.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
73. hearing
Meaning: the sense of detecting and interpreting sound. Model: Alicia learned how hearing begins with vibrations at the eardrum. Hearing involves ear and brain.
Context test: Cover hearing and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare hearing with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing hearing. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use hearing in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain hearing aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where hearing matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Hearing involves ear and brain.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
74. eardrum
Meaning: a thin membrane that vibrates when sound waves reach it. Model: Kai Kai labelled the eardrum. It transfers sound vibration inward.
Context test: Cover eardrum and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare eardrum with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing eardrum. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use eardrum in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain eardrum aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where eardrum matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. It transfers sound vibration inward.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
75. cochlea
Meaning: a spiral inner-ear structure that converts vibration into nerve signals. Model: Tricia traced sound into the cochlea. It contains sensory hair cells.
Context test: Cover cochlea and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare cochlea with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing cochlea. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use cochlea in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain cochlea aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where cochlea matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. It contains sensory hair cells.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
76. auditory nerve
Meaning: the nerve carrying hearing signals from inner ear to brain. Model: Alicia labelled the auditory nerve. The brain interprets the signals.
Context test: Cover auditory nerve and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare auditory nerve with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing auditory nerve. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use auditory nerve in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain auditory nerve aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where auditory nerve matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. The brain interprets the signals.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
77. ultrasound
Meaning: sound with frequencies above the typical upper limit of human hearing. Model: Kai Kai learned that ultrasound is used in imaging and sensing. Humans cannot hear most ultrasound.
Context test: Cover ultrasound and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare ultrasound with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing ultrasound. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use ultrasound in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain ultrasound aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where ultrasound matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Humans cannot hear most ultrasound.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
78. infrasound
Meaning: sound with frequencies below the typical lower limit of human hearing. Model: Tricia learned that some animals detect infrasound. It has very low frequency.
Context test: Cover infrasound and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare infrasound with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing infrasound. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use infrasound in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain infrasound aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where infrasound matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. It has very low frequency.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
79. sonar
Meaning: a system using sound pulses and echoes to detect objects or measure distance underwater. Model: Alicia studied sonar on research vessels. Sonar depends on reflected sound.
Context test: Cover sonar and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare sonar with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing sonar. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use sonar in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain sonar aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where sonar matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Sonar depends on reflected sound.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
80. echolocation
Meaning: the use of emitted sound and returning echoes to locate objects. Model: Kai Kai learned how bats use echolocation. Some marine mammals also use it.
Context test: Cover echolocation and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare echolocation with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing echolocation. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use echolocation in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain echolocation aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where echolocation matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Some marine mammals also use it.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Sound Sources And Materials
81. tuning fork
Meaning: a U-shaped metal device that vibrates at a characteristic frequency when struck. Model: Tricia used a tuning fork to produce a steady tone. It is useful for demonstrating vibration.
Context test: Cover tuning fork and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare tuning fork with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing tuning fork. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use tuning fork in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain tuning fork aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where tuning fork matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. It is useful for demonstrating vibration.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
82. speaker
Meaning: a device that converts electrical signals into sound by vibrating a surface. Model: Alicia watched the speaker cone move. Speakers produce pressure waves.
Context test: Cover speaker and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare speaker with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing speaker. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use speaker in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain speaker aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where speaker matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Speakers produce pressure waves.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
83. microphone
Meaning: a device that converts sound into an electrical signal. Model: Kai Kai recorded sound with a microphone. Microphones detect vibration.
Context test: Cover microphone and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare microphone with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing microphone. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use microphone in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain microphone aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where microphone matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Microphones detect vibration.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
84. string
Meaning: a stretched cord that can vibrate to produce musical sound. Model: Tricia changed string length and pitch. Shorter or tighter strings often give higher pitch.
Context test: Cover string and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare string with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing string. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use string in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain string aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where string matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Shorter or tighter strings often give higher pitch.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
85. membrane
Meaning: a thin flexible surface that can vibrate to produce or detect sound. Model: Alicia struck a drum membrane. Membranes move air.
Context test: Cover membrane and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare membrane with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing membrane. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use membrane in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain membrane aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where membrane matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Membranes move air.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
86. air column
Meaning: a body of air whose vibrations can produce musical sound. Model: Kai Kai blew across a tube to vibrate the air column. Length affects resonance frequencies.
Context test: Cover air column and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare air column with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing air column. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use air column in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain air column aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where air column matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Length affects resonance frequencies.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
87. vibration source
Meaning: the object or part that begins a sound by vibrating. Model: Tricia identified the speaker cone as the vibration source. Every ordinary sound needs a vibrating source.
Context test: Cover vibration source and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare vibration source with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing vibration source. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use vibration source in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain vibration source aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where vibration source matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Every ordinary sound needs a vibrating source.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
88. acoustic
Meaning: related to sound or the way sound behaves in a space. Model: Alicia compared acoustic conditions in two rooms. Acoustics affects clarity.
Context test: Cover acoustic and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare acoustic with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing acoustic. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use acoustic in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain acoustic aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where acoustic matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Acoustics affects clarity.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
89. insulation
Meaning: material or design that reduces transfer of sound, heat or electricity. Model: Kai Kai tested soft materials for sound insulation. Sound insulation reduces transmission.
Context test: Cover insulation and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare insulation with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing insulation. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use insulation in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain insulation aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where insulation matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Sound insulation reduces transmission.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
90. soundproofing
Meaning: methods used to reduce sound entering or leaving a space. Model: Tricia evaluated simple soundproofing materials. Perfect soundproofing is difficult.
Context test: Cover soundproofing and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare soundproofing with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing soundproofing. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use soundproofing in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain soundproofing aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where soundproofing matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Perfect soundproofing is difficult.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Investigation And Measurement
91. experiment
Meaning: a controlled investigation used to test an idea. Model: Alicia designed an experiment on pitch. Experiments change and measure variables.
Context test: Cover experiment and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare experiment with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing experiment. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use experiment in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain experiment aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where experiment matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Experiments change and measure variables.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
92. variable
Meaning: a factor that can change in an investigation. Model: Kai Kai changed string length as the variable. Variables have different roles.
Context test: Cover variable and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare variable with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing variable. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use variable in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain variable aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where variable matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Variables have different roles.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
93. oscilloscope
Meaning: an instrument that displays changing electrical signals as waveforms. Model: Tricia viewed a microphone signal on an oscilloscope. It makes sound-wave patterns visible.
Context test: Cover oscilloscope and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare oscilloscope with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing oscilloscope. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use oscilloscope in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain oscilloscope aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where oscilloscope matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. It makes sound-wave patterns visible.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
94. waveform
Meaning: a visual representation of how a wave or signal changes over time. Model: Alicia compared two waveforms. Waveform shape carries information.
Context test: Cover waveform and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare waveform with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing waveform. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use waveform in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain waveform aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where waveform matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Waveform shape carries information.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
95. signal
Meaning: a varying quantity that carries information. Model: Kai Kai recorded an audio signal. Signals can be electrical, optical or acoustic.
Context test: Cover signal and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare signal with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing signal. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use signal in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain signal aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where signal matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Signals can be electrical, optical or acoustic.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
96. detector
Meaning: a device that senses and records a form of energy or signal. Model: Tricia used a light detector. Detectors convert physical effects into data.
Context test: Cover detector and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare detector with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing detector. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use detector in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain detector aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where detector matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Detectors convert physical effects into data.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
97. sensor
Meaning: a device that detects a physical condition and produces a measurable output. Model: Alicia used a sound sensor. Sensors support automated measurement.
Context test: Cover sensor and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare sensor with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing sensor. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use sensor in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain sensor aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where sensor matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Sensors support automated measurement.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
98. measurement
Meaning: a numerical value obtained using a defined method and unit. Model: Kai Kai recorded each measurement carefully. Measurements include uncertainty.
Context test: Cover measurement and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare measurement with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing measurement. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use measurement in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain measurement aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where measurement matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Measurements include uncertainty.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
99. evidence
Meaning: observations or data used to support or challenge an explanation. Model: Tricia used evidence to explain the pattern. Evidence quality matters.
Context test: Cover evidence and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare evidence with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing evidence. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use evidence in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain evidence aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where evidence matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Evidence quality matters.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
100. hearing protection
Meaning: equipment or practices that reduce harmful sound exposure. Model: Alicia wore hearing protection near loud machinery. Protection should match the sound level and duration.
Context test: Cover hearing protection and read the model as a cloze sentence. Identify at least two clues that narrow the meaning: process, location, movement, measurement, cause, result, material or relationship. Predict the category before revealing the answer.
Precision test: Compare hearing protection with a nearby term from this section. State one overlap and one important boundary. Then write a sentence in which the neighbouring term would be inaccurate. This prevents a group of technical words from becoming interchangeable in the learner’s mind.
Reading transfer: Alicia writes a four-sentence Grade 6 passage containing hearing protection. Tricia underlines the clues that make the meaning recoverable. Kai Kai creates one plausible distractor and explains exactly which clue eliminates it. Then the roles rotate.
Writing transfer: Use hearing protection in a fresh explanatory paragraph. Add one natural collocation and one cause, effect, comparison, measurement or example. The term should make the science clearer rather than simply make the sentence sound technical.
Oral transfer: Explain hearing protection aloud in twenty seconds without reading the definition. Then answer one follow-up beginning with how, why, where, what changes or what is the difference. If the explanation becomes circular, return to a concrete example.
Scenario test: Invent a realistic or scientific situation where hearing protection matters. Change one condition so a related term becomes more accurate. Explain the switch and identify the clue that changed the answer. Protection should match the sound level and duration.
Delayed retrieval: Two days later, retrieve the term from its definition, the definition from the term and a new example from memory. Mix it with older vocabulary so page order cannot provide the answer.
Cumulative Practice
Mix at least twenty terms from different sections. Sort them by process, structure or measurement, complete cloze items, explain contrasts and write one paragraph using five terms naturally. Return to the Vocabulary Learning Hub for the wider vocabulary architecture and the Science Investigation and Experiment list for scientific method vocabulary.