Ten-Year Series · PSLE 2019
PSLE Science 2019 Answers
The answer key for the PSLE Science 2019 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 | (4) | Systems · Plant vs animal cellsMCQ | 2 |
| Q2 | (4) | Diversity · Classifying living thingsMCQ | 2 |
| Q3 | (3) | Systems · Plant transport xylem & phloemMCQ | 2 |
| Q4 | (1) | Interactions · Environmental pollutionMCQ | 2 |
| Q5 | (3) | Interactions · Food chainsMCQ | 2 |
| Q6 | (3) | Energy · Forms of energyMCQ | 2 |
| Q7 | (1) | Interactions · Environmental pollutionMCQ | 2 |
| Q8 | (1) | Cycles · Life cycle of a plantMCQ | 2 |
| Q9 | (2) | Systems · Plant transport xylem & phloemMCQ | 2 |
| Q10 | (2) | Diversity · Classifying living thingsMCQ | 2 |
| Q11 | (4) | Energy · Forms of energyMCQ | 2 |
| Q12 | (1) | Cycles · Plant reproductionMCQ | 2 |
| Q13 | (3) | Systems · Human respiratory systemMCQ | 2 |
| Q14 | (4) | Interactions · Environmental pollutionMCQ | 2 |
| Q15 | (2) | Diversity · MaterialsMCQ | 2 |
| Q16 | (4) | Systems · Series vs parallel circuitsMCQ | 2 |
| Q17 | (3) | Interactions · ForcesMCQ | 2 |
| Q18 | (3) | Energy · Conservation of energyMCQ | 2 |
| Q19 | (3) | Energy · Heat conductors vs insulatorsMCQ | 2 |
| Q20 | (1) | Interactions · ForcesMCQ | 2 |
| Q21 | (2) | Cycles · Three states of matterMCQ | 2 |
| Q22 | (4) | Systems · Series vs parallel circuitsMCQ | 2 |
| Q23 | (2) | Cycles · Three states of matterMCQ | 2 |
| Q24 | (4) | Cycles · Water cycleMCQ | 2 |
| Q25 | (2) | Systems · Series vs parallel circuitsMCQ | 2 |
| Q26 | (3) | Interactions · MagnetsMCQ | 2 |
| Q27 | (4) | Interactions · ForcesMCQ | 2 |
| Q28 | (1) | Energy · Light and shadowMCQ | 2 |
| Q29 | Model answer in worked solution | Interactions · AdaptationsOpen-ended | 2 |
| Q30 | Model answer in worked solution | Interactions · AdaptationsOpen-ended | 3 |
| Q31 | Model answer in worked solution | Interactions · Food chainsOpen-ended | 4 |
| Q32 | Model answer in worked solution | Interactions · AdaptationsOpen-ended | 4 |
| Q33 | Model answer in worked solution | Interactions · Environmental pollutionOpen-ended | 5 |
| Q34 | Model answer in worked solution | Interactions · Food chainsOpen-ended | 4 |
| Q35 | Model answer in worked solution | Cycles · Changes of stateOpen-ended | 3 |
| Q36 | Model answer in worked solution | Systems · Series vs parallel circuitsOpen-ended | 3 |
| Q37 | Model answer in worked solution | Energy · Conservation of energyOpen-ended | 4 |
| Q38 | Model answer in worked solution | Interactions · MagnetsOpen-ended | 5 |
| Q39 | Model answer in worked solution | Energy · Heat conductors vs insulatorsOpen-ended | 4 |
| Q40 | Model answer in worked solution | Cycles · Water cycleOpen-ended | 3 |
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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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