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Primary 3 Science Systems Quiz
Free P3 Science Systems quiz, HY3 Exam version, with questions, answers, and syllabus-aligned practice for Singapore students.
These static practice materials are generated from the site's syllabus and paper-generation workflow, with source and model context shown so students and parents can evaluate the material before use.
Questions
Primary 3 Science Quiz - Systems
Name: ___________________________
Class: _________
Date: ____________
Score: _______ / 20
Duration: 40 minutes
Total Marks: 20
Instructions:
- This quiz has 20 questions on the topic of Systems.
- Answer all questions in the spaces provided.
- Section A: 1–10 (1 mark each)
- Section B: 11–15 (1 mark each)
- Section C: 16–20 (1 mark each)
Section A: Living and Non-Living Systems (Questions 1–10)
-
Which of the following is a living thing?
(a) rock
(b) cat
(c) spoon
(d) book
-
Tick (✓) the living things in the list below.
- table ___
- rose ___
- dog ___
- cloud ___
-
A teddy bear can be moved by a child. Is the teddy bear a living thing? Why?
-
Which characteristic shows that a plant is living?
(a) it is green
(b) it grows taller
(c) it is outside
(d) it is soft
-
Sort these into two groups:
apple, chair, fish, pencil, bird
Living: ________________________
Non-living: ______________________ -
True or False: A balloon getting bigger is an example of a living thing growing.
-
Which of these needs air, food and water to survive?
(a) cup
(b) boy
(c) shoe
(d) bag
-
Mushroom is an example of a __________.
(a) plant
(b) fungus
(c) bacteria
(d) animal
-
Bacteria are __________.
(a) non-living
(b) living
(c) toys
(d) rocks
-
Match the animal to its group.
- has feathers and wings → __________
- has scales and lives in water → __________
(bird / fish)
Section B: Materials in Systems (Questions 11–15)
- Which material is waterproof and good for a raincoat?
(a) paper
(b) plastic
(c) cotton cloth
(d) wood
- Tick (✓) the natural materials.
- wood ___
- plastic ___
- cotton ___
- glass ___
- Why is glass used for a window?
(a) it is soft
(b) light can pass through
(c) it floats
(d) it is food
- A cup is made of metal because metal is __________.
(a) weak
(b) strong
(c) see-through
(d) flexible
- Which is a man-made material?
(a) wool
(b) leather
(c) nylon
(d) rubber from tree
Section C: Magnets and Forces in Systems (Questions 16–20)
- A magnet can pull some things towards it. This pull is called __________.
(a) attract
(b) repel
(c) push
(d) drop
- Which materials are attracted to a magnet?
(a) wood and plastic
(b) iron and steel
(c) paper and cloth
(d) rubber and glass
- Two north poles of magnets are placed near each other. They will __________.
(a) attract
(b) repel
(c) stick
(d) melt
- A freely hanging magnet will point in which direction?
(a) east–west
(b) north–south
(c) up–down
(d) left–right
- Which everyday object uses a magnet?
(a) spoon
(b) refrigerator door
(c) chair
(d) book
Answers
Primary 3 Science Quiz - Systems: Answer Key
Total Marks: 20
Topic: Systems (Living/Non-living, Materials, Magnets as systems)
Section A: Living and Non-Living Systems (Q1–10)
Q1. (b) cat [1 mark]
Teaching note: A cat is an animal that is living. Rocks, spoons and books are non-living. Living things need air, food and water.
Q2. rose ✓, dog ✓ [1 mark total; 0.5 each if split]
Teaching note: Rose is a plant (living). Dog is an animal (living). Table and cloud are non-living.
Q3. No. [1 mark]
Teaching note: A teddy bear is moved by a child, not by itself. Living things move by themselves. The teddy bear is non-living.
Q4. (b) it grows taller [1 mark]
Teaching note: Growth is a characteristic of living things. Green colour or softness can also be in non-living things.
Q5. Living: apple, fish, bird | Non-living: chair, pencil [1 mark]
Teaching note: Apple is from a plant (living), fish and bird are animals (living). Chair and pencil are made by people (non-living).
Q6. False [1 mark]
Teaching note: A balloon gets bigger because air is blown in, not because it grows like a living thing. Growth in living things happens from inside.
Q7. (b) boy [1 mark]
Teaching note: A boy is living and needs air, food and water. Cup, shoe and bag are non-living.
Q8. (b) fungus [1 mark]
Teaching note: Mushroom is a fungus, not a plant. Fungi are a different group of living things.
Q9. (b) living [1 mark]
Teaching note: Bacteria are tiny living things. They are not toys or rocks.
Q10. has feathers and wings → bird; has scales and lives in water → fish [1 mark]
Teaching note: Birds have feathers and wings. Fish have scales and breathe in water.
Section B: Materials in Systems (Q11–15)
Q11. (b) plastic [1 mark]
Teaching note: Plastic is waterproof, so rain cannot pass through. Good for raincoat.
Q12. wood ✓, cotton ✓ [1 mark total]
Teaching note: Wood comes from trees, cotton from plants (natural). Plastic and glass are man-made.
Q13. (b) light can pass through [1 mark]
Teaching note: Glass lets light pass, so we can see outside. That is why windows use glass.
Q14. (b) strong [1 mark]
Teaching note: Metal is strong and does not break easily, good for cups that hold hot drinks.
Q15. (c) nylon [1 mark]
Teaching note: Nylon is made by people (man-made). Wool, leather, tree rubber are natural.
Section C: Magnets and Forces in Systems (Q16–20)
Q16. (a) attract [1 mark]
Teaching note: Magnet pulls magnetic things towards it = attract. Push away = repel.
Q17. (b) iron and steel [1 mark]
Teaching note: Magnets attract iron and steel. They do not attract wood, plastic, paper, cloth, rubber, glass.
Q18. (b) repel [1 mark]
Teaching note: Like poles (N–N or S–S) repel. Unlike poles (N–S) attract.
Q19. (b) north–south [1 mark]
Teaching note: A freely hanging magnet always points north–south because of Earth’s magnetic field.
Q20. (b) refrigerator door [1 mark]
Teaching note: Many refrigerator doors use magnets to close tightly. Spoon, chair, book usually do not.
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