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Primary 3 Science Diversity Quiz

Free P3 Science Diversity quiz, HY3 Exam version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Questions

Primary 3 Science Quiz - Diversity

Name: ___________________________
Class: _________
Date: ____________
Score: _______ / 30

Duration: 40 minutes
Total Marks: 30

Instructions:

This quiz has 20 questions on the topic of Diversity.
Section A: Living and Non-Living Things (Q1–7)
Section B: Materials (Q8–14)
Section C: Mixed Diversity (Q15–20)
Write your answers clearly in the spaces provided.
Use the characteristics you have learnt to help you classify.

Section A: Living and Non-Living Things (7 questions)

1. Which of the following is a living thing?
( ) A. A toy car
( ) B. A cat
( ) C. A stone
( ) D. A plastic cup

2. A teddy bear can be moved by a child. Is the teddy bear a living thing? Explain your answer in one sentence.

3. Tick (✓) the things below that are living things.

Object	Living?
Rose plant	( )
Wooden chair	( )
Earthworm	( )
Mobile phone	( )

4. Which characteristic shows that a plant is a living thing?
( ) A. It is green
( ) B. It can grow
( ) C. It is tall
( ) D. It is in a pot

5. A balloon gets bigger when air is blown into it. Does this mean the balloon is growing like a living thing? Why or why not?

6. Sort the following into two groups: living things and non-living things.
[bird, book, fish, table, mushroom, bicycle]

Living things: __________________________
Non-living things: ______________________

7. Bacteria are very small. Are bacteria living things?
( ) Yes
( ) No

Section B: Materials (7 questions)

8. Which material is most likely transparent?
( ) A. Wooden door
( ) B. Clear glass window
( ) C. Rubber tyre
( ) D. Wool sock

9. Complete the table below. Tick (✓) the correct property for each material.

Material	Flexible	Rigid
Plastic ruler	( )	( )
Rubber band	( )	( )

10. Which of these is a natural material?
( ) A. Plastic bag
( ) B. Cotton shirt
( ) C. Glass cup
( ) D. Nylon rope

11. Why is a raincoat usually made of waterproof material?

12. A boy needs a bag to carry heavy books without tearing. Which property is most important?
( ) A. Transparency
( ) B. Strength
( ) C. Ability to float
( ) D. Flexibility

13. Sort the materials into natural and man-made.
[wood, plastic, cotton, glass, wool]

Natural: __________________________
Man-made: ________________________

14. Which material would be best for a window so we can see outside? Give a reason.
Material: ____________
Reason: ___________________________________________________

Section C: Mixed Diversity (6 questions)

15. Classify the animals below by body covering.
[fish, bird, snake, dog, butterfly]

Has scales: ________________
Has feathers: ______________
Has fur/hair: ______________
Has wings but no feathers: _

16. Mushrooms are often found on rotten wood. Are mushrooms plants? Why or why not?

17. A material lets some light through but not all. It is not fully clear. What property is this showing?
( ) A. Strong
( ) B. Waterproof
( ) C. Transparent
( ) D. Not fully transparent

18. Look at the picture of four objects.

Diagram for Q18 (P3 Science)

Generated diagram for Q18.

Write the letters of the living things shown.
Living things: __________

19. Which of the following groups contains only animals?
( ) A. Cat, mosquito, fern
( ) B. Bird, fish, beetle
( ) C. Mushroom, dog, rose
( ) D. Tree, frog, lizard

20. Explain why we classify things into groups in Science.

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Answers

Primary 3 Science Quiz - Diversity (Answer Key)

Total Marks: 30
Question count: 20 (exactly)

Section A: Living and Non-Living Things

1. B (cat) [1 mark]
Teaching note: A cat is an animal that needs food, water, and air, can grow and reproduce — these are living things' characteristics. Toys, stones, and cups do not do these.

2. No, the teddy bear is not living because it cannot grow, reproduce, or need food by itself; it only moves when a child pushes it. [1 mark]
Teaching note: Movement alone does not make something living. Living things move by themselves.

3. [2 marks: ½ each correct tick]

Rose plant: ✓ (living)
Wooden chair: ( )
Earthworm: ✓ (living)
Mobile phone: ( )
Note: Common mistake — thinking a phone is "alive" because it lights up.

4. B (It can grow) [1 mark]
Teaching note: Growth is a key characteristic of living things. Colour or size alone does not prove life.

5. No, because the balloon only changes size from air pushed in, not from inside growth like a living thing. [1 mark]
Teaching note: Inflating is not growth; living things grow by making more of their own cells.

6. [2 marks: 1 for each group correct]
Living: bird, fish, mushroom
Non-living: book, table, bicycle
Note: Mushroom is a fungus, but it is still a living thing.

7. Yes [1 mark]
Teaching note: Bacteria are microorganisms that are alive; they are not plants.

Section B: Materials

8. B (Clear glass window) [1 mark]
Teaching note: Transparent means light passes through so we can see clearly.

9. [2 marks: ½ each]

Plastic ruler: Rigid (✓ under Rigid)
Rubber band: Flexible (✓ under Flexible)
Note: Rigid means cannot bend easily; flexible means can bend.

10. B (Cotton shirt) [1 mark]
Teaching note: Cotton comes from plants — natural. Plastic, glass, nylon are man-made.

11. So that rain water cannot pass through and the person stays dry. [1 mark]
Teaching note: Waterproof means material does not absorb water.

12. B (Strength) [1 mark]
Teaching note: Strength lets material hold load without breaking.

13. [2 marks: 1 each]
Natural: wood, cotton, wool
Man-made: plastic, glass

14. [2 marks: 1 material, 1 reason]
Material: glass (or clear plastic)
Reason: It is transparent so light passes through and we can see outside.

Section C: Mixed Diversity

15. [4 marks: 1 each]

Has scales: fish, snake
Has feathers: bird
Has fur/hair: dog
Has wings but no feathers: butterfly
Teaching note: Insects like butterfly have wings but not feathers.

16. No, mushrooms are fungi, not plants, because they do not make food from sunlight and belong to a different group. [1 mark]
Teaching note: Fungi absorb food; plants make their own.

17. D (Not fully transparent) [1 mark]
Teaching note: At P3, we say most/some/none light passes; "not fully transparent" is acceptable description.

18. [1 mark]
Living things: goldfish, plant (or labels given: goldfish and plant)
Teaching note: From image, goldfish and plant are living; stool and spoon are non-living.

19. B (Bird, fish, beetle) [1 mark]
Teaching note: Fern, mushroom, tree, rose are not animals.

20. To organise living and non-living things by their characteristics so we can study and understand them better. [1 mark]
Teaching note: Classification helps scientists see patterns.

Marking summary: 20 questions, total 30 marks. Easy/Medium spread aligned to P3 Diversity topic.