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Primary 3 Science Practice Paper 5

Free P3 Science Practice Paper 5, Ox AI version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 3 Science AI Generated Generated by Ox Alpha Updated 2026-08-27

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TuitionGoWhere Practice Paper - Science Primary 3

TuitionGoWhere Practice Paper (AI)

Subject: Science Level: Primary 3 Paper: Practice Paper - Version 5 (Topic

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TuitionGoWhere Practice Paper - Science Primary 3

TuitionGoWhere Practice Paper (AI)

Subject: Science Level: Primary 3 Paper: Practice Paper - Version 5 Topics: Living Things & Life Cycles; Matter; Magnets

Total Marks: 40 | Time: 45 minutes

Section A: Multiple Choice Questions (20 marks)

Choose the correct answer for each question. Each question carries 2 marks.

Question 1 (2 marks) Which of the following is a living thing? A. A wooden chair B. A mushroom C. A glass bottle D. A plastic toy

Question 2 (2 marks) Living things need air, water and food in order to __________. A. stay alive B. become non-living C. stop growing D. stop reproducing

Question 3 (2 marks) Which stage comes immediately after the egg in the life cycle of a butterfly? A. Adult butterfly B. Pupa C. Caterpillar (larva) D. Cocoon shell

Question 4 (2 marks) How is the life cycle of a chicken different from that of a butterfly? A. The chicken lays eggs but the butterfly does not. B. The young chicken looks like its adult, but the caterpillar does not look like the adult butterfly. C. The butterfly has three stages but the chicken has four stages. D. The chicken's life cycle has no adult stage.

Question 5 (2 marks) Matter is anything that has mass and occupies __________. A. time B. space C. energy D. light

Question 6 (2 marks) Which of the following shows that air has mass? A. Air can be compressed in a syringe. B. A balloon becomes heavier when filled with air. C. Air cannot be seen. D. Air fills up the whole balloon.

Question 7 (2 marks) Water changes into ice when it is __________. A. heated B. cooled to 0°C C. left in the open D. stirred quickly

Question 8 (2 marks) Which property of magnets is being used when a magnetic compass needle points north-south? A. Magnets attract iron objects. B. Like poles repel. C. Unlike poles attract. D. A freely suspended magnet always comes to rest pointing north-south.

Question 9 (2 marks) Two bar magnets are brought close together with their north poles facing each other. What will happen? A. They will attract each other. B. They will repel each other. C. Nothing will happen. D. They will lose their magnetism.

Question 10 (2 marks) Which object will a magnet NOT attract? A. Steel paper clip B. Iron nail C. Plastic ruler D. Steel spoon

Section B: Open-Ended Questions (20 marks)

Question 11 (4 marks) List two differences between living things and non-living things.

Question 12 (4 marks) Draw and label the four stages in the life cycle of a butterfly in the correct order.

Question 13 (4 marks) Ravi poured 50 ml of water into a cup, a bowl and a tall bottle one at a time. The water took the shape of each container. (a) What does this show about the shape of liquids? (2 marks) (b) Did the volume of water change when it was poured into different containers? Explain your answer. (2 marks)

Question 14 (4 marks) Siti hangs a bar magnet from a string so that it can swing freely. After it stops moving, she observes which way the magnet points. (a) Which direction does the north pole of the magnet point? (2 marks) (b) Siti brings another magnet's south pole near the hanging magnet's north pole. What happens? Why? (2 marks)

Question 15 (4 marks) Ali places a paper clip on a piece of cardboard. He holds a magnet under the cardboard and moves it slowly. The paper clip moves along the cardboard. (a) Explain why the paper clip moves even though it does not touch the magnet. (2 marks) (b) Name ONE material Ali could place between the magnet and the paper clip that would STOP the paper clip from moving. (2 marks)

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Answers

Answer Key - Science Primary 3 Practice Paper (Version 5)

Section A: Multiple Choice Questions

Question	Answer
1	B - A mushroom is a fungus, which is a living thing.
2	A - Living things need air, water and food to stay alive.
3	C - Egg → Caterpillar (larva) → Pupa → Adult butterfly.
4	B - The chick resembles the adult chicken; the caterpillar does not resemble the adult butterfly.
5	B - Matter has mass and occupies space.
6	B - An inflated balloon weighs more than an empty one, showing air has mass.
7	B - Water freezes (becomes ice) when cooled to 0°C.
8	D - A freely suspended magnet rests pointing north-south.
9	B - Like poles repel each other.
10	C - Magnets do not attract non-magnetic materials like plastic.

Section B: Open-Ended Questions

Question 11 Any two of:

Living things grow; non-living things do not grow.
Living things reproduce; non-living things cannot reproduce.
Living things respond to changes around them; non-living things do not.
Living things need air, water and food; non-living things do not.

Question 12 Four labelled stages in order (diagram or flow): Egg → Caterpillar (larva) → Pupa → Adult butterfly (1 mark per correctly ordered and labelled stage.)

Question 13 (a) Liquids have no fixed shape; they take the shape of the container they are in. (2 marks) (b) No, the volume did not change. It remained 50 ml because liquids have a fixed volume even though they change shape. (2 marks)

Question 14 (a) The north pole of the magnet points towards the Earth's geographical North. (2 marks) (b) The hanging magnet's north pole will be attracted to (move towards) the other magnet's south pole, because unlike poles attract. (2 marks)

Question 15 (a) Magnetic force can act through the cardboard without contact; the magnet attracts the steel/iron paper clip through the material. (2 marks) (b) Any thick non-magnetic barrier that blocks the magnetic force, e.g. a thick book or a thick sheet of wood/plastic placed between them. (Accept any suitable answer.) (2 marks)

End of Answer Key