Ten-Year Series · PSLE 2024
PSLE Science 2024 Answers
The answer key for the PSLE Science 2024 paper (Paper 1): 40 questions, 28 with a free final answer, plus the topic and marks for each. Find the question number in your TYS book and tick it off.
We publish answers only. The questions and diagrams stay in your printed Ten-Year Series (TYS) book, so keep it open beside this page (“see the diagram in your book”).
MCQ answers are option numbers, e.g. (3).
Paper 1
40 questions · 28 free final answers · 100 marks listed
| Q | Answer | Topic / section | Marks |
|---|---|---|---|
| Q1 | (3) | Cycles · Life cycle of a butterflyMCQ | 2 |
| Q2 | (4) | Systems · Human digestive systemMCQ | 2 |
| Q3 | (2) | Diversity · Classifying living thingsMCQ | 2 |
| Q4 | (3) | Systems · Plant vs animal cellsMCQ | 2 |
| Q5 | (2) | Cycles · Water cycleMCQ | 2 |
| Q6 | (2) | Diversity · Classifying living thingsMCQ | 2 |
| Q7 | (4) | Systems · Heart and circulationMCQ | 2 |
| Q8 | (1) | Diversity · Classifying living thingsMCQ | 2 |
| Q9 | (1) | Interactions · Living things and environmentMCQ | 2 |
| Q10 | (4) | Cycles · Plant reproductionMCQ | 2 |
| Q11 | (4) | Interactions · Living things and environmentMCQ | 2 |
| Q12 | (1) | Interactions · Living things and environmentMCQ | 2 |
| Q13 | (3) | Energy · Forms of energyMCQ | 2 |
| Q14 | (4) | Cycles · Plant reproductionMCQ | 2 |
| Q15 | (1) | Energy · Forms of energyMCQ | 2 |
| Q16 | (1) | Energy · Heat and temperatureMCQ | 2 |
| Q17 | (2) | Systems · Series vs parallel circuitsMCQ | 2 |
| Q18 | (4) | Interactions · MagnetsMCQ | 2 |
| Q19 | (4) | Diversity · MaterialsMCQ | 2 |
| Q20 | (3) | Diversity · MaterialsMCQ | 2 |
| Q21 | (1) | Energy · Light and shadowMCQ | 2 |
| Q22 | (4) | Energy · Heat conductors vs insulatorsMCQ | 2 |
| Q23 | (3) | Energy · Forms of energyMCQ | 2 |
| Q24 | (3) | Cycles · Changes of stateMCQ | 2 |
| Q25 | (1) | Interactions · ForcesMCQ | 2 |
| Q26 | (3) | Systems · Series vs parallel circuitsMCQ | 2 |
| Q27 | (1) | Interactions · ForcesMCQ | 2 |
| Q28 | (4) | Systems · Series vs parallel circuitsMCQ | 2 |
| Q29 | Model answer in worked solution | Interactions · AdaptationsOpen-ended | 4 |
| Q30 | Model answer in worked solution | Cycles · Plant reproductionOpen-ended | 3 |
| Q31 | Model answer in worked solution | Interactions · Living things and environmentOpen-ended | 4 |
| Q32 | Model answer in worked solution | Interactions · Food chainsOpen-ended | 4 |
| Q33 | Model answer in worked solution | Interactions · Environmental pollutionOpen-ended | 3 |
| Q34 | Model answer in worked solution | Cycles · Reproduction in animalsOpen-ended | 4 |
| Q35 | Model answer in worked solution | Interactions · ForcesOpen-ended | 5 |
| Q36 | Model answer in worked solution | Energy · Heat and temperatureOpen-ended | 5 |
| Q37 | Model answer in worked solution | Cycles · Changes of stateOpen-ended | 4 |
| Q38 | Model answer in worked solution | Interactions · MagnetsOpen-ended | 4 |
| Q39 | Model answer in worked solution | Diversity · MaterialsOpen-ended | 2 |
| Q40 | Model answer in worked solution | Diversity · MaterialsOpen-ended | 2 |
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Step-by-step worked solutions for every Science question, written the way PSLE markers award method marks, plus model answers for open-ended questions. We are adding them newest years first (2025 back to 2021), checked against the answer key on this page.
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