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P5 Science 2021 — Ai Tong SA2 Semestral Assessment 2
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| Level | P5 (Primary 5) |
| Subject | Science |
| Year | 2021 |
| School | Ai Tong |
| Paper type | SA2 Semestral Assessment 2 |
| Total questions | 41 |
| Question format | 26 multiple-choice, 15 open-ended |
| Booklets | Booklet A (MCQ) · Booklet B (open-ended) |
| Original paper | 42-page PDF |
This is the 2021 Ai Tong P5 Science SA2 paper, a 41-question exam made up of 26 multiple-choice questions and 15 open-ended questions. On ChatPSLE you can attempt every question online, get it marked instantly, and ask an AI tutor to explain any answer step by step — instead of just downloading a static PDF.
Topics covered
DiversityCyclesSystemsInteractionsEnergy
Sample questions from this paper
Which of the following characteristics is found in amphibians but not in reptiles?
- They lay eggs.
- They have moist skin.
- They are covered with scales.
- They breathe through their lungs.
The diagram below shows the direction of blood flow in some parts of the body. Which of the following graphs correctly shows the amount of oxygen and carbon dioxide at the blood vessels of A and B?
The table below shows the freezing and boiling points of three unknown substances at various temperatures. SubstanceFreezing point (°C)Boiling point (°C)T598U45120V85480 At which temperature will all substances be in liquid state?
- $40^{\circ} \mathrm{C}$
- $75^{\circ} \mathrm{C}$
- $96^{\circ}C$
- $210^{\circ} \mathrm{C}$
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Other 2021 Science papers
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Frequently asked questions
- Is the 2021 Ai Tong Science paper free?
- Yes. You can attempt this P5 Science paper online for free on ChatPSLE. A premium plan adds step-by-step worked explanations and unlimited AI tutoring.
- How many questions are in this Science paper?
- It has 41 questions in total — 26 multiple-choice and 15 open-ended.
- Can I get answers and explanations?
- Yes. ChatPSLE marks your answers instantly and its AI tutor explains the reasoning for each Science question, worked out step by step.