Ten-Year Series answers · 2012–2025
PSLE Science Past Year Papers
Answer keys for every PSLE Science paper from 2012 to 2025: 578 questions, 402 with a free final answer. Pick a year below, then mark the paper in your TYS book question by question.
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”).
PSLE Science answers by year
| Year | Papers | Free answers | Open |
|---|---|---|---|
| PSLE 2025 | Paper 140 questions | 28 / 40 | Answers |
| PSLE 2024 | Paper 140 questions | 28 / 40 | Answers |
| PSLE 2023 | Paper 140 questions | 28 / 40 | Answers |
| PSLE 2022 | Paper 140 questions | 28 / 40 | Answers |
| PSLE 2021 | Paper 140 questions | 28 / 40 | Answers |
| PSLE 2020 | Paper 140 questions | 28 / 40 | Answers |
| PSLE 2019 | Paper 140 questions | 28 / 40 | Answers |
| PSLE 2018 | Paper 140 questions | 28 / 40 | Answers |
| PSLE 2017 | Paper 139 questions | 28 / 39 | Answers |
| PSLE 2016 | Paper 143 questions | 30 / 43 | Answers |
| PSLE 2015 | Paper 144 questions | 30 / 44 | Answers |
| PSLE 2014 | Paper 144 questions | 30 / 44 | Answers |
| PSLE 2013 | Paper 144 questions | 30 / 44 | Answers |
| PSLE 2012 | Paper 144 questions | 30 / 44 | Answers |
Before you start
- Do the paper under exam timing first. Checking answers as you go hides the real gaps.
- A question marked “being double-checked” has a disputed key. We only publish it once it is confirmed.
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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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Our team of ex-MOE teachers, private tutors and education data analysts brings 16+ years of combined experience.