Ten-Year Series · PSLE 2013
PSLE Science 2013 Answers
The answer key for the PSLE Science 2013 paper (Paper 1): 44 questions, 30 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
44 questions · 30 free final answers · 100 marks listed
| Q | Answer | Topic / section | Marks |
|---|---|---|---|
| Q1 | (2) | Diversity · Classifying living thingsMCQ | 2 |
| Q2 | (1) | Interactions · AdaptationsMCQ | 2 |
| Q3 | (3) | Interactions · Food chainsMCQ | 2 |
| Q4 | (2) | Systems · Plant vs animal cellsMCQ | 2 |
| Q5 | (3) | Interactions · Food chainsMCQ | 2 |
| Q6 | (2) | Interactions · Environmental pollutionMCQ | 2 |
| Q7 | (2) | Interactions · Environmental pollutionMCQ | 2 |
| Q8 | (3) | Interactions · Environmental pollutionMCQ | 2 |
| Q9 | (4) | Systems · Human respiratory systemMCQ | 2 |
| Q10 | (3) | Cycles · Plant reproductionMCQ | 2 |
| Q11 | (4) | Interactions · Food chainsMCQ | 2 |
| Q12 | (1) | Systems · Plant transport xylem & phloemMCQ | 2 |
| Q13 | (2) | Systems · Heart and circulationMCQ | 2 |
| Q14 | (1) | Interactions · Environmental pollutionMCQ | 2 |
| Q15 | (1) | Energy · Forms of energyMCQ | 2 |
| Q16 | (3) | Diversity · MaterialsMCQ | 2 |
| Q17 | (1) | Systems · Series vs parallel circuitsMCQ | 2 |
| Q18 | (4) | Diversity · MaterialsMCQ | 2 |
| Q19 | (3) | Cycles · Water cycleMCQ | 2 |
| Q20 | (4) | Diversity · MaterialsMCQ | 2 |
| Q21 | (1) | Systems · Series vs parallel circuitsMCQ | 2 |
| Q22 | (4) | Interactions · ForcesMCQ | 2 |
| Q23 | (3) | Energy · Forms of energyMCQ | 2 |
| Q24 | (4) | Cycles · Changes of stateMCQ | 2 |
| Q25 | (2) | Systems · Series vs parallel circuitsMCQ | 2 |
| Q26 | (2) | Interactions · ForcesMCQ | 2 |
| Q27 | (2) | Energy · Heat and temperatureMCQ | 2 |
| Q28 | (4) | Energy · Forms of energyMCQ | 2 |
| Q29 | (3) | Energy · Light and shadowMCQ | 2 |
| Q30 | (1) | Energy · Heat conductors vs insulatorsMCQ | 2 |
| Q31 | Model answer in worked solution | Cycles · Plant reproductionOpen-ended | 2 |
| Q32 | Model answer in worked solution | Interactions · AdaptationsOpen-ended | 2 |
| Q33 | Model answer in worked solution | Interactions · AdaptationsOpen-ended | 3 |
| Q34 | Model answer in worked solution | Energy · Forms of energyOpen-ended | 3 |
| Q35 | Model answer in worked solution | Interactions · Environmental pollutionOpen-ended | 3 |
| Q36 | Model answer in worked solution | Interactions · AdaptationsOpen-ended | 4 |
| Q37 | Model answer in worked solution | Systems · Plant transport xylem & phloemOpen-ended | 3 |
| Q38 | Model answer in worked solution | Diversity · MaterialsOpen-ended | 2 |
| Q39 | Model answer in worked solution | Energy · Forms of energyOpen-ended | 3 |
| Q40 | Model answer in worked solution | Interactions · ForcesOpen-ended | 2 |
| Q41 | Model answer in worked solution | Cycles · Water cycleOpen-ended | 3 |
| Q42 | Model answer in worked solution | Diversity · MaterialsOpen-ended | 2 |
| Q43 | Model answer in worked solution | Interactions · MagnetsOpen-ended | 4 |
| Q44 | Model answer in worked solution | Interactions · MagnetsOpen-ended | 4 |
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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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