Primary 3 Science Diversity Quiz

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Primary 3 Science Quiz - Diversity

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

Duration: 40 minutes
Total Marks: 30

Instructions:

• This quiz is about Diversity (living/non-living things and materials).
• Answer all 20 questions.
• Section A: circle the correct letter. Section B: fill in the blank. Section C: write short answers.
• Do your own work.

Section A (Questions 1–8, 1 mark each, total 8 marks)

1. Which of the following is a living thing?
   A) Toy car
   B) Rose plant
   C) Wooden chair
   D) Plastic cup

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2. Which group does a parrot belong to?
   A) Fish
   B) Bird
   C) Insect
   D) Reptile

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3. Which material is waterproof?
   A) Paper
   B) Cloth
   C) Plastic
   D) Sponge

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4. Mushrooms are best classified as:
   A) Plants
   B) Animals
   C) Fungi
   D) Bacteria

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5. A fish breathes using its:
   A) Lungs
   B) Gills
   C) Skin
   D) Fins

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6. Which is a natural material?
   A) Plastic
   B) Glass
   C) Cotton
   D) Nylon

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7. Which animal has scales and lives in water?
   A) Frog
   B) Snake
   C) Goldfish
   D) Sparrow

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8. Bacteria are:
   A) Non-living
   B) Living microorganisms
   C) A type of plant
   D) A type of rock

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Section B (Questions 9–14, 1 mark each, total 6 marks)

9. A material that allows most light to pass through is called _________. (transparent / opaque)

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10. The body covering of a bird is _________.

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11. An example of a mammal is _________.

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12. A teddy bear is a _________ (living / non-living) thing.

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13. Rubber is a _________ (natural / man-made) material.

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14. Living things need _________, food and air to survive.

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Section C (Questions 15–20, marks as stated, total 16 marks)

15. (3 marks) At a Singapore park, Siti sees a monitor lizard, a fern plant, a stone and a butterfly.
    (a) List the living things. _____
    (b) Give one characteristic shown by the fern plant. _____

16. (3 marks) Wei Ming thinks a toy robot is alive because it moves. Explain why the toy robot is non-living.

17. (3 marks) Compare wood and plastic for making a raincoat. Which is better and why?

18. (3 marks) Classify the following into animals and non-living objects:
    cat, spoon, mosquito, book, dolphin.
    Animals: ____________________
    Non-living: ____________________

19. (2 marks) State two properties of metal that make it useful for a cooking pot.

20. (2 marks) Why are bacteria and fungi not placed in the plant group?

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Primary 3 Science Quiz - Diversity (Answer Key)

Total Marks: 30
Topic: Diversity (living/non-living, materials)

Section A Answers (1 mark each)

1. B) Rose plant
   Teaching note: A rose plant is living because it grows, needs air/water/food, and can reproduce. Toy car, chair, cup are non-living made by humans.

2. B) Bird
   Teaching note: Parrots have feathers and wings, lay eggs, and breathe with lungs → birds.

3. C) Plastic
   Teaching note: Plastic does not absorb water; paper/cloth/sponge take in water.

4. C) Fungi
   Teaching note: Mushrooms are fungi, not plants (they have no leaves/flowers like green plants).

5. B) Gills
   Teaching note: Fish use gills to take oxygen from water.

6. C) Cotton
   Teaching note: Cotton comes from the cotton plant → natural. Others are man-made.

7. C) Goldfish
   Teaching note: Fish have scales and live in water. Frog is amphibian, snake reptile, sparrow bird.

8. B) Living microorganisms
   Teaching note: Bacteria are tiny living things; they are not plants or non-living.

Section B Answers (1 mark each)

9. transparent
   Note: Transparent lets most light through; opaque blocks light.

10. feathers
    Note: Birds are covered with feathers.

11. (any correct e.g. dog, cat, human)
    Marking: Accept any mammal example.

12. non-living
    Note: Teddy bear cannot grow/reproduce/respond by itself.

13. natural
    Note: Rubber comes from rubber tree sap.

14. water
    Note: Living things need water, food, air.

Section C Answers

15. (3 marks)
    (a) Living: monitor lizard, fern plant, butterfly (2 marks: 1 for list, 1 for completeness)
    (b) Characteristic: can grow / reproduce / respond (1 mark)
    Teaching: Stone is non-living; others show life processes.

16. (3 marks)
    Answer: The toy robot is non-living because it does not need food, water or air, cannot grow by itself, and cannot reproduce. Its movement comes from batteries, not life processes. (3 pts: non-living stated 1, reason no needs 1, no growth/reproduce 1)

17. (3 marks)
    Answer: Plastic is better. Wood absorbs water and becomes wet; plastic is waterproof so keeps user dry. (1 compare, 1 better choice, 1 reason)

18. (3 marks)
    Animals: cat, mosquito, dolphin (2 marks)
    Non-living: spoon, book (1 mark)
    Note: Mosquito is an insect (animal).

19. (2 marks)
    Answers: Strong (does not break easily) and good conductor of heat / not absorb water (1 mark each).

20. (2 marks)
    Answer: They do not make food like green plants and have different features; bacteria are microorganisms, fungi absorb food. (1 each)