G2 Science Multiple-Choice Questions are a major part of the 2027 Singapore-Cambridge Secondary Education Certificate (SEC) combined-science assessment. Every selected science discipline has a 20-mark multiple-choice paper containing 20 compulsory questions, worth 20% of the overall combined-subject grade. Students have their MCQ and structured paper in one 1 hour 15 minute session, and SEAB advises them not to spend more than 30 minutes on the MCQ component.
This guide explains how G2 Physics, Chemistry and Biology MCQs work in the three subject combinations K223, K224 and K225. It provides a method for interpreting questions, eliminating incorrect options for valid reasons, reading numerical and graphical information, and using an error log. All worked questions below are original educational examples, not official SEAB questions or predictions of the 2027 examination.
- K223: Science (Physics, Chemistry) — MCQ Papers 1 and 3.
- K224: Science (Physics, Biology) — MCQ Papers 1 and 5.
- K225: Science (Chemistry, Biology) — MCQ Papers 3 and 5.
- Physics Paper 1: 20 compulsory MCQs, 20 marks, 20%.
- Chemistry Paper 3: 20 compulsory MCQs, 20 marks, 20%.
- Biology Paper 5: 20 compulsory MCQs, 20 marks, 20%.
- Time: Each discipline’s MCQ and 30-mark structured paper share 75 minutes.
- Practical advice: Build a provisional answer, verify against evidence, then select the most suitable option.
Why G2 Science MCQs Are Not Just Recall Questions
An MCQ may ask a direct factual question, but it may also give an unfamiliar graph, calculation, apparatus diagram or biological scenario. The candidate must choose which of several alternatives is scientifically correct under the stated conditions.
A learner may remember that diffusion involves particle movement down a concentration gradient but choose an answer about osmosis when the question concerns a different substance. Another may know the speed formula but mistake the axes of a graph.
These are not simply failures to memorise. They are failures to select and apply the correct concept.
The syllabus’s assessment objectives allocate approximately 45% to knowledge and understanding, 45% to handling information and solving problems, and 10% to experimental skills and investigations across theory assessment. Good MCQ practice should therefore include application and evidence handling as well as factual retrieval.
What the Official 2027 Scheme Specifies
SEAB publishes a common syllabus document for the three combined-science subjects. It lists six papers, but each candidate sits four corresponding to their chosen pair of sciences.
Each discipline contributes 20% through MCQs and 30% through structured questions. A K224 student, for instance, takes Physics Papers 1 and 2 and Biology Papers 5 and 6. There is no Chemistry component in that registered combination.
The Physics paper pair is taken together, as is each other science pair. Students are advised not to spend more than 30 minutes on the MCQ component so that time remains for the 30-mark structured component.
The official 2027 scheme specifies 20 compulsory MCQs for each MCQ paper. It does not guarantee that every item will test a predictable chapter or that every future examination will use the same contexts.
The Three Science Combinations in One Map
| SEC code | Sciences | MCQ papers | Structured papers |
|---|---|---|---|
| K223 | Physics + Chemistry | 1 + 3 | 2 + 4 |
| K224 | Physics + Biology | 1 + 5 | 2 + 6 |
| K225 | Chemistry + Biology | 3 + 5 | 4 + 6 |
Parents sometimes buy a general “Combined Science” workbook without checking the subject code. Some content may be useful across combinations, but a K225 candidate who practises Physics instead of Chemistry is not preparing for the correct components.
Confirm K223, K224 or K225 from the student’s official subject registration before planning revision. Use the correct syllabus learning outcomes, not a broad textbook title alone.
The Four-Step MCQ Method: Meaning, Model, Check, Choice
Step 1: Understand what the item is asking
Read the command and any conditions. Does the question ask for the correct statement, the incorrect statement, a calculation, a prediction, an explanation or a graph interpretation?
Small words matter. “Which statement is not correct?” reverses the selection task. So does an item asking for the least likely explanation.
A student should not choose an option simply because it contains a familiar keyword.
Step 2: Identify the scientific model
Before focusing on answer choices, name the relevant concept: speed, energy transfer, particle structure, acid-base reaction, cell transport, respiration or another prescribed idea.
If the question describes a graph, identify the axes first. If it shows plant tissue, identify what moves through which structure. If it involves an equation, determine which quantity is known and which must be calculated.
The model should explain why an answer fits.
Step 3: Reach a provisional answer
Where possible, calculate or reason toward an answer before letting the options influence you. This reduces the temptation to select the first familiar-looking alternative.
For example, if a question asks for average speed, write distance ÷ time in the margin of a practice page. Then compare the result with the options and their units.
For conceptual questions, state the relevant scientific principle briefly in your own words.
Step 4: Verify the chosen option
Read the entire selected statement. A distractor may begin with a true phrase and end with an incorrect conclusion.
Check units, qualifiers, directions and the problem’s conditions. If an alternative seems plausible only after adding facts the question never gave, treat it cautiously.
During revision, explain why at least one rejected option is wrong. This reveals understanding that a correct letter alone cannot show.
MCQ Practice 1: Average Speed
Original fictional question: A cyclist travels 150 m in 30 s at a constant speed. What is the speed?
A. 0.2 m/s B. 5 m/s C. 5 m D. 180 m/s
Answer: B. Speed is distance divided by time, so 150 ÷ 30 = 5 m/s.
Option C gives the correct number but incorrect physical unit. Option A reverses the quantities. Option D combines them in an unrelated operation.
This exercise illustrates a common distractor pattern: the answer may contain an attractive number but represent the wrong quantity.
MCQ Practice 2: Interpreting a Distance–Time Graph
Original fictional question: A distance–time graph has a horizontal segment at 20 m between 5 s and 10 s. What does that segment show?
A. The object is moving at constant nonzero speed. B. The object is stationary during that interval. C. The object is accelerating uniformly. D. Its speed is 20 m/s.
Answer: B. The distance from the starting point remains at 20 m throughout the interval, so the object is not changing its recorded distance.
This interpretation depends on the distance–time axes and the stated interval. A horizontal segment on a speed–time graph above zero would instead indicate constant nonzero speed.
Many errors arise when students recognise the line shape but ignore the axis labels.
MCQ Practice 3: Series Circuit Current
Original fictional question: In a simple single-loop series circuit operating steadily, which statement about current is correct?
A. Current is always larger after the lamp. B. The lamp consumes current so none returns to the battery. C. The same current flows at different points of the single series loop. D. The battery supplies a different current to each wire segment.
Answer: C. Under the described steady series-circuit conditions, current is the same at different points in the loop.
A lamp transfers electrical energy to other forms; it does not use up current as though charge disappears.
This question tests an underlying model rather than a formula. Students who memorise “energy is used” and substitute “current” may select a wrong answer.
MCQ Practice 4: Temperature and Heat
Original fictional question: Two objects have the same measured temperature. Which conclusion must be correct solely from that fact?
A. They have the same mass. B. They contain exactly the same total internal energy. C. Their temperatures are equal. D. They are made from the same substance.
Answer: C. The given fact establishes temperature equality, not equality of mass, composition or total internal energy.
This seems simple, but it teaches a fundamental reasoning habit: do not claim more than the evidence supports.
In Physics questions, similar temperatures can coexist with different masses and materials. The candidate should resist an option that adds assumptions not present in the question.
MCQ Practice 5: Chemical Formulae and Atom Counts
Original fictional question: Which balanced equation correctly represents magnesium combining with oxygen to form magnesium oxide?
A. Mg + O₂ → MgO B. 2Mg + O₂ → 2MgO C. Mg + O₂ → MgO₂ D. 2Mg + O₂ → Mg₂O
Answer: B. The balanced equation 2Mg + O₂ → 2MgO has two magnesium atoms and two oxygen atoms on each side, while retaining the correct magnesium oxide formula.
A common error is to change a compound’s subscript merely to balance numbers. Doing so changes the chemical substance represented.
The correct check is formula first, coefficients second, atom count third.
MCQ Practice 6: Elements, Compounds and Mixtures
Original fictional question: A sample contains two different substances that are physically mixed but have not chemically reacted. Which description is most appropriate?
A. An element containing one type of atom B. A compound with a fixed chemical formula C. A mixture of substances D. A pure new substance produced by chemical reaction
Answer: C. A physical mixture contains different substances without necessarily forming one new compound.
The important distinction is between the identity of the components and how they are combined. Students should not assume that a sample containing two kinds of material must be a chemical compound.
This understanding supports later topics such as separation techniques and interpreting particle diagrams.
MCQ Practice 7: Choosing a Separation Method
Original fictional question: A sample contains insoluble sand mixed with water. Which method can separate the sand from the liquid under ordinary school-laboratory conditions?
A. Filtration B. Paper chromatography to remove the sand as a coloured spot C. Fractional distillation based only on the sand’s insolubility D. Use of an indicator to identify the sand’s colour
Answer: A. Filtration is appropriate for separating insoluble solid particles from the liquid.
The reason is a relevant physical property, not that filtration is a universally correct answer whenever a mixture appears.
If the solid were dissolved, ordinary filtration would not separate the dissolved substance in the same way. The candidate should match a technique to the material’s properties.
Practical processes must be performed under school supervision, not improvised as home chemistry experiments.
MCQ Practice 8: Acid and Alkali Claims
Original fictional question: An unknown liquid gives a particular indicator colour. What should a scientist do before naming the liquid as a specific chemical substance?
A. Assume every liquid with that colour is the same substance. B. Use the specific indicator’s meaning and consider whether further evidence is needed. C. Ignore the indicator and guess from the container shape. D. State that colour tests always identify a unique substance.
Answer: B. An indicator may provide useful information about acidity or alkalinity under the prescribed conditions, but one colour result does not necessarily identify a unique chemical substance.
The exam may supply additional tests or known properties. Students should use the complete data.
This practice teaches evidence limits, a recurring theme in scientific questions.
MCQ Practice 9: Cell Structure and Function
Original fictional question: Why is a root hair cell’s long projection useful?
A. It reduces the surface available for absorption. B. It increases the surface area for taking up water and dissolved mineral ions. C. It prevents all movement of water. D. It makes the plant independent of the environment.
Answer: B. The long projection increases surface area for the relevant uptake processes.
The other options contradict the basic structure–function relationship.
A good learner should be able to explain the mechanism without repeating only “because it absorbs”. The link is particular structure → physical property → biological function.
MCQ Practice 10: Diffusion and Osmosis
Original fictional question: Which process specifically concerns the net movement of water molecules through a partially permeable membrane down the appropriate water-potential gradient?
A. Osmosis B. Photosynthesis C. Ventilation D. Digestion
Answer: A. Osmosis describes the specified movement of water through a partially permeable membrane.
The precision lies in identifying what moves and the membrane condition. The word “diffusion” can describe particle movement more generally, but osmosis is the relevant biological term in this scenario.
A student should avoid answering every “high to low” question by reflex without considering the actual substance.
MCQ Practice 11: Respiration Is Not Breathing
Original fictional question: Which statement about cellular respiration is correct?
A. It is only the movement of air into the lungs. B. It is the process by which living cells release energy from nutrient molecules. C. It occurs only in humans. D. It is identical to gas exchange at the lungs.
Answer: B. Cellular respiration releases energy from molecules within cells. Ventilation and gas exchange support the human body’s supply of substances but are distinct processes.
The wrong options reflect a familiar misconception: using “breathing”, “respiration” and “gas exchange” as synonyms.
Students should learn how the processes connect without erasing their differences.
MCQ Practice 12: Interpreting a Biological Dataset
Original fictional question: Class A has 5 illness-related absences among 20 students, while Class B has 8 among 40 students. Which statement is supported by these figures?
A. A has the higher observed absence proportion. B. B has the higher observed absence proportion. C. The two classes have identical absence proportions. D. The difference proves which classroom is cleaner.
Answer: A. A’s observed proportion is 5/20 = 25%, while B’s is 8/40 = 20%.
The raw number of absences is higher in B, but the relevant comparison is the proportion within each class.
No conclusion about cleanliness follows from these counts alone. The item tests calculation, denominator choice and limits of inference.
The dataset is fictional and does not describe a real school.
Why the Wrong Options Matter
A distractor is an incorrect alternative that may appear plausible because it reflects a common misconception, misread quantity or incomplete calculation.
When a student chooses option C in the first speed question, they may know the numerical calculation but not the unit. When they choose a wrong biology mechanism, they may be confusing two legitimate scientific terms.
These are different weaknesses, even though both appear as one wrong MCQ.
A useful teacher asks, “Why did that option look right to you?” The student’s explanation often reveals the first misconception more clearly than the final score.
Not Every Plausible Statement Answers the Question
An option can be scientifically true in general but irrelevant to the specific problem. For example, a question might ask what a graph’s gradient represents, while one alternative correctly defines average speed but does not answer the graph’s axes.
A strong learner verifies that the answer addresses the actual command word and conditions, not simply that the sentence contains a fact learned in the same chapter.
This is particularly important when options use words such as always, never, only, must and may. The degree of certainty changes whether a claim is justified.
Read the whole statement rather than recognising one correct phrase near the beginning.
How to Use Elimination Properly
Elimination is useful when a student can state a reason why an option is wrong. It is not a substitute for scientific understanding.
Suppose a Physics question asks for an acceleration. An option expressed in metres per second may have the wrong unit, while one expressed in metres per second squared has the appropriate unit. That can help narrow choices, though the numerical value still needs checking.
In Chemistry, an equation violating conservation of atoms can be rejected. In Biology, an option that identifies the wrong moving substance can be rejected.
The strongest approach is to combine independent reasoning with justified elimination.
The Problem With Guessing Based on Familiar Words
A student who sees “concentration” may choose the option containing “osmosis” even if the question concerns ions moving against a gradient.
Another sees “energy” and selects the option stating that electrical current is used up, because they remember a lamp consumes electrical energy.
The problem is not lack of words. It is a conceptual substitution: one related term is inserted where a different mechanism applies.
During practice, ask learners to explain the relationship between the words. Energy transfer is not charge disappearance. Diffusion is not identical to active transport. Distinguishing these concepts can repair an entire family of MCQ errors.
How to Handle Numerical MCQs Efficiently
For a numerical item, identify the quantity requested, the relationship, the given values, the units and the final checking condition.
A short working line may be enough. For example, “speed = 150/30 = 5 m/s” makes the method visible to the student even if the final MCQ answer is only a letter.
Be cautious about values written in different units. A question may provide kilometres and seconds, or grams and kilograms. Convert consistently before substitution.
An MCQ is not an excuse to skip reasoning. In timed practice, a clear one-line method can be faster than choosing and then repeatedly doubting an option.
How to Read a Graph in an MCQ
First identify whether the horizontal axis is time, temperature, distance or another quantity. Next identify the vertical axis and units.
Then distinguish an increase in a quantity from an increase in its rate of change. A graph that rises but becomes flatter still shows increasing values, even as the incremental increase becomes smaller.
If the question asks for a gradient, use the correct changes in axes. If it asks for the total quantity accumulated over time, a different relationship may be required.
Do not assume that a steep-looking line must always indicate a high value of every related physical quantity.
How to Read a Table in an MCQ
A table may contain different sample sizes, time intervals, units or experimental conditions.
Before choosing an option, identify whether the question asks for total, average, rate, percentage change or comparison.
For example, 40 visitors in one hour and 60 in two hours correspond to different average rates: 40 visitors per hour and 30 visitors per hour. The larger total does not imply the larger rate.
This reasoning is useful in all three Science strands because experimental datasets often require careful comparison of quantities.
Experimental Reasoning Appears in Theory MCQs
The official G2 combined-science syllabus includes Experimental Skills and Investigations in theory assessment. A student may need to interpret a given apparatus, read an instrument or decide whether a method supports a fair comparison.
There is no separate practical examination paper listed for the 2027 K223/K224/K225 combined-science scheme. That does not make practical reasoning unimportant.
Students should learn to identify what is changed, what is measured, what must be controlled and what the observations justify.
The correct preparation is safe, supervised laboratory learning combined with data and diagram practice, not unsupervised experiments with dangerous materials.
A Fair-Test MCQ Example
Original fictional item: A student wants to investigate how the distance travelled by a toy vehicle changes with the starting ramp height. Which factor should be kept the same across trials to support a fair comparison?
A. Use a different vehicle for every height. B. Use the same vehicle and comparable surface conditions. C. Change the ramp height and the mass of the vehicle simultaneously. D. Change the measuring method each time.
Answer: B. Keeping other relevant conditions comparable helps isolate the effect of changing ramp height.
A student who chooses an option simply because it contains “height” may fail to distinguish the independent variable from controlled factors.
The best response explains why the control improves interpretation.
Time Management: The Thirty-Minute Guidance
SEAB advises that candidates should not spend more than 30 minutes on each 20-mark MCQ component. The MCQ and structured papers for the same science share one 1 hour 15 minute session.
Thirty minutes for twenty questions gives an average of 1.5 minutes per question, but that is a pacing guide, not a rule requiring identical time for every item.
Some questions take only a few seconds when the concept is clear. Others include calculations or graphs and deserve more attention. The student should avoid allowing one difficult MCQ to consume several minutes while the structured paper remains untouched.
Practise realistic combined sessions, including the structured component, rather than always giving students unlimited time for MCQs alone.
What to Do When Two Options Seem Correct
Read the exact wording again. One option may be correct only under an unstated assumption. Another may contain a qualifier that makes it too broad.
Ask whether the question uses best, most accurate, not, except or another important condition.
For scientific claims, check whether an option asserts certainty where the evidence supports only a possibility.
Do not invent missing data to make a preferred option work. The correct choice must follow from the given information and relevant syllabus knowledge.
What to Do When No Option Seems Correct
It is possible that the student has misunderstood the question, overlooked a unit conversion or forgotten a concept.
Return to the stem. Identify which quantity or mechanism is required. If a numerical answer does not match, check whether units, rounding or arithmetic need review.
Avoid immediately assuming the examination item is defective. Carefully constructed papers generally expect a valid choice under their specified conditions, though practice resources can occasionally contain errors.
If practising with a questionable workbook, consult a teacher rather than building revision habits around a possibly incorrect answer key.
The Difference Between Recognition and Retrieval
Students often recognise the correct answer when they see four options but cannot explain the idea without them. That is recognition, not necessarily secure retrieval.
An effective revision exercise removes the options after checking. Ask the student to explain the principle or reconstruct the calculation independently.
Then provide a new context where the same principle must be selected without a chapter label.
This moves learning from answer familiarity to transferable understanding.
Why a Correct Guess Is Not Yet Mastery
A student may score an MCQ correctly by chance. When reviewing a practice paper, mark correct answers obtained through uncertain guessing as not yet secure.
Ask for a short explanation of why the selected option fits and one alternative fails. If that explanation is missing, the learner should revisit the underlying model.
This does not mean the student should spend examination time writing essays beside every MCQ. It is a revision method for developing understanding before the paper.
In the actual examination, follow the specified answer-recording format and time constraints.
The MCQ Error Log: A Useful Table
Instead of recording only “Question 7 wrong”, classify the mistake:
| Error category | Example | Repair |
|---|---|---|
| Knowledge | A cell structure is not recognised | Relearn the structure and function |
| Vocabulary | Diffusion confused with osmosis | Contrast what moves and where |
| Model | A series circuit described incorrectly | Rebuild the physical relationship |
| Calculation | Distance divided by the wrong time | Define the quantities and units |
| Graph | Distance–time and speed–time confused | Label axes before interpreting |
| Evidence | An observation treated as proof of cause | Separate observation and inference |
| Reading | “Not correct” overlooked | Highlight the command word |
| Timing | One MCQ consumes too long | Practise bounded decisions |
An error log helps identify whether the student needs more knowledge, better reasoning or improved examination habits.
A single wrong answer should not lead to ten pages of unrelated practice. Target the first failed step, then test the correction on a new question.
The Fencing Method for MCQ Improvement
The eduKateSG Fencing Method starts with one controlled concept and adds a small new condition at each stage.
For Physics, begin with a straightforward speed calculation. Change the units, then change the graph and finally introduce an unfamiliar story problem.
For Chemistry, begin with a correctly balanced equation. Add a similar-looking incorrect formula, then a question about what the coefficients mean. The learner must explain why an option fails.
For Biology, begin with diffusion. Compare it with osmosis and active transport, then present a new diagram in which the student must identify the correct mechanism.
When a learner can handle the changed context without a prompt, the skill is becoming independent.
A Four-Week G2 Science MCQ Revision Cycle
Week 1: Diagnose the Real Errors
Complete a short mixed set from the student’s actual science combination. Record which wrong answers result from knowledge, application, graph interpretation or question reading.
Week 2: Repair the First Two Misconceptions
Select two recurring concept gaps. Use contrasting examples and require the learner to explain the correction without the answer options visible.
Week 3: Practise Unfamiliar Applications
Mix conceptual, numerical and experimental-data questions. Avoid grouping all questions under obvious topic headings, so students must select the relevant principle independently.
Week 4: Rehearse a Full Discipline Session
Complete an MCQ component and a structured component within a practice period matching the official 75-minute combined sitting. Review pacing and check whether corrections transfer.
A four-week plan is a starting cycle, not a promise of a particular grade or full syllabus mastery.
A Useful Small-Group MCQ Lesson
A 90-minute lesson can begin with retrieval, reveal a misconception through a small diagnostic set, explain the science and then require independent choices in unfamiliar scenarios.
In eduKateSG’s 3-pax learning approach, the tutor can ask each learner why one option was chosen, making hidden misconceptions visible. A student who knows the correct letter but not the reasoning gets different feedback from one who calculates accurately but misreads units.
Tuition is not automatically necessary when school teaching and purposeful self-practice already work well. The important element is specific feedback linked to the actual error.
What Parents Can Ask
Parents can use three short questions: “What does the question ask?”, “Why is that option correct?” and “Why is this other option wrong?”
These questions can reveal uncertainty even when the parent is not a specialist Science teacher. They also encourage the child to treat practice questions as opportunities to explain, not simply to score.
Avoid calling every incorrect answer careless. Some mistakes are stable misconceptions that need teaching. Avoid encouraging dangerous home experiments as a substitute for approved school practical work.
The objective is independent scientific reasoning supported by safe instruction.
Frequently Asked Questions
How many MCQs are in a 2027 G2 Science component?
Twenty compulsory questions, worth 20 marks.
How much does each MCQ paper count toward the combined result?
20% of the overall K223, K224 or K225 Combined Science grade.
Does a candidate take all three MCQ papers?
No. The candidate takes two, matching the registered combination. K223 uses Physics and Chemistry; K224 uses Physics and Biology; K225 uses Chemistry and Biology.
How long is the MCQ paper?
The MCQ and structured paper for the same discipline share 1 hour 15 minutes. SEAB advises no more than 30 minutes for the MCQ component.
Does the MCQ paper only test definitions?
No. The syllabus assesses knowledge, information handling, problem solving and experimental reasoning in theory papers.
Can calculations appear?
Yes, numerical reasoning is part of Science learning. Students should practise using quantities, relationships and correct units.
Can graphs or apparatus appear?
The syllabus includes interpreting measurements, diagrams, tables and graphs as experimental and information-handling skills.
Is there a separate practical paper?
The 2027 combined-science assessment scheme lists the selected MCQ and structured papers, not a separate practical examination paper.
Is guessing enough when uncertain?
A choice must be made in the examination according to its rules, but during revision a correct guess should still be reviewed until the student understands the concept.
Should students always answer MCQs in order?
Follow the actual examination instructions. During practice, learn to avoid spending excessive time on one uncertain question while easier items and the structured paper remain.
How can students stop confusing similar biological terms?
Compare the process, moving substance, direction, structures and evidence in contrasting examples, then apply the distinction to an unfamiliar scenario.
Are the questions in this article official SEAB material?
No. Every question and answer choice here is an original teaching illustration, not an actual or predicted SEC question.
Official Sources and Related Reading
- SEAB 2027 G2 Science K223, K224 and K225 syllabus — printed page 7 contains the full paper map, timing and compulsory MCQ requirements.
- SEAB 2027 G2 school-candidate syllabus directory.
- How G2 Science (Physics, Chemistry) Works | SEC Guide.
- How G2 Science (Physics, Biology) Works | SEC Guide.
- How G2 Science (Chemistry, Biology) Works | SEC Guide.
- How G2 Science Structured Questions Work | SEC Guide.
- How G2 Science Experimental Skills Work | SEC Guide.
- The eduKateSG Clementi small-group teaching reference — first principles, focused feedback and independent application.
Final Takeaway: A Good MCQ Choice Has a Scientific Reason
In the 2027 G2 Combined Science SEC, each chosen discipline includes a 20-question MCQ paper worth 20%. The strongest preparation teaches students to read the conditions, identify the model, calculate or infer accurately and verify the entire option.
A correct letter is useful for a score; the correct reasoning is useful for the next unfamiliar question. When learners can explain why an option fits and why another fails, their knowledge is becoming more dependable.
Examination details checked against SEAB’s published 2027 K223/K224/K225 syllabus on 13 November 2026. All practice questions and datasets are original teaching material.