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Primary 3 Science Diversity Quiz
Free Exam-Derived Owl Alpha Primary 3 Science Diversity quiz with questions and answers for Singapore students. This page is rendered as a direct URL so the questions and answers can be discovered without pressing in-page buttons.
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Questions
Primary 3 Science Quiz - Diversity
Name: _______________________
Class: _______________________
Date: _______________________
Score: _______ / 30
Duration: 30 minutes
Total Marks: 30
Instructions
- Answer all questions.
- Write your answers in the spaces provided.
- For multiple-choice questions, write the letter (A, B, C, or D) in the box.
- Read each question carefully before answering.
Section A: Multiple-Choice Questions (10 marks)
Questions 1–10. Each question carries 1 mark.
1. Which of the following is a living thing?
(A) A wooden chair
(B) A plastic toy car
(C) A potted plant
(D) A metal spoon
Answer: ________
2. Which of the following is a characteristic of ALL living things?
(A) They can fly.
(B) They need air, water, and food.
(C) They have four legs.
(D) They are green in colour.
Answer: ________
3. A balloon is inflated and becomes bigger. Is the balloon a living thing?
(A) Yes, because it grows bigger.
(B) Yes, because it is filled with air.
(C) No, because it cannot reproduce.
(D) No, because it is made of rubber only.
Answer: ________
4. Which group does a frog belong to?
(A) Mammal
(B) Bird
(C) Amphibian
(D) Reptile
Answer: ________
5. Which of the following is a non-flowering plant?
(A) Rose
(B) Sunflower
(C) Fern
(D) Orchid
Answer: ________
6. Which of the following is NOT a living thing?
(A) Mushroom
(B) Mould
(C) Yeast
(D) Rock
Answer: ________
7. A car moves along a road. Why is a car NOT considered a living thing?
(A) It does not have wheels.
(B) It cannot move by itself without fuel and a driver.
(C) It is made of metal.
(D) It is too big.
Answer: ________
8. Which of the following animals is a mammal?
(A) Crocodile
(B) Penguin
(C) Dolphin
(D) Lizard
Answer: ________
9. Which characteristic is shown when a plant grows towards sunlight?
(A) It needs air.
(B) It responds to changes.
(C) It reproduces.
(D) It moves by itself.
Answer: ________
10. Which of the following is a fungus?
(A) Moss
(B) Mushroom
(C) Grass
(D) Algae
Answer: ________
Section B: True or False (5 marks)
Questions 11–15. Each question carries 1 mark.
Write True or False for each statement.
11. All living things can reproduce.
Answer: ________
12. A teddy bear is a living thing because it has eyes and can be moved.
Answer: ________
13. Bacteria are living things.
Answer: ________
14. Non-living things can grow bigger on their own.
Answer: ________
15. A fish is an animal that lives in water and breathes through gills.
Answer: ________
Section C: Classification and Short Answer (15 marks)
Questions 16–20. Marks as indicated.
16. (3 marks)
The following objects are found in a garden: ant, stone, butterfly, watering can, earthworm, plastic flower.
(a) List the living things in the garden.
(b) List the non-living things in the garden.
17. (3 marks)
Match each animal to its correct group. Draw lines to connect them.
| Animal | Group | |
|---|---|---|
| Eagle | Mammal | |
| Frog | Bird | |
| Whale | Amphibian | |
| Snake | Reptile |
18. (3 marks)
State three characteristics of living things.
(a) _______________________________________________________________
(b) _______________________________________________________________
(c) _______________________________________________________________
19. (3 marks)
The table below shows some organisms. Classify each as Plant, Animal, or Fungus.
| Organism | Group |
|---|---|
| Fern | _______________ |
| Bee | _______________ |
| Yeast | _______________ |
20. (3 marks)
A student says, "A robot is a living thing because it can move and respond to commands."
Explain why the student is wrong. Give two reasons.
(a) _______________________________________________________________
(b) _______________________________________________________________
End of Quiz
Answers
Primary 3 Science Quiz - Diversity
Answer Key
Section A: Multiple-Choice Questions (10 marks)
1. (C) A potted plant
Reasoning: A potted plant is a living thing because it grows, needs water and air, and can reproduce. The other options are non-living objects.
2. (B) They need air, water, and food.
Reasoning: All living things require air, water, and food to survive. Not all living things can fly, have four legs, or are green.
3. (C) No, because it cannot reproduce.
Reasoning: Although the balloon becomes bigger when inflated, this is not true growth. The balloon cannot reproduce, respond to stimuli, or carry out life processes on its own.
4. (C) Amphibian
Reasoning: A frog is an amphibian because it can live both in water and on land. It has moist skin and lays eggs in water.
5. (C) Fern
Reasoning: A fern is a non-flowering plant. It reproduces using spores, not flowers or seeds. Rose, sunflower, and orchid are flowering plants.
6. (D) Rock
Reasoning: A rock is a non-living thing. Mushroom, mould, and yeast are all types of fungi, which are living things.
7. (B) It cannot move by itself without fuel and a driver.
Reasoning: A car moves only when fuel is supplied and a driver operates it. Living things can move by themselves using their own energy.
8. (C) Dolphin
Reasoning: A dolphin is a mammal because it breathes air through lungs, gives birth to live young, and feeds its young with milk. Crocodile, penguin, and lizard are not mammals.
9. (B) It responds to changes.
Reasoning: When a plant grows towards sunlight, it is responding to a stimulus (light). This shows that living things can respond to changes in their surroundings.
10. (B) Mushroom
Reasoning: A mushroom is a type of fungus. Moss, grass, and algae are plants.
Section B: True or False (5 marks)
11. True
Reasoning: All living things can reproduce to produce young of the same kind. This is one of the key characteristics of living things.
12. False
Reasoning: A teddy bear is a non-living thing. Although it has eyes and can be moved by a person, it cannot grow, reproduce, or carry out life processes on its own.
13. True
Reasoning: Bacteria are living things. They are tiny organisms that can grow, reproduce, and respond to their environment.
14. False
Reasoning: Non-living things cannot grow on their own. Any increase in size (such as a balloon being inflated) is due to an external action, not the object's own life processes.
15. True
Reasoning: A fish is an animal that lives in water. It breathes through gills, which take in oxygen from the water.
Section C: Classification and Short Answer (15 marks)
16. (3 marks)
(a) Living things: ant, butterfly, earthworm
(1 mark — all three correct; ½ mark if one or two correct)
(b) Non-living things: stone, watering can, plastic flower
(1 mark — all three correct; ½ mark if one or two correct)
Marking note: Each list must be complete and correct for full marks. No partial credit for mixing living and non-living items.
17. (3 marks)
Correct matches:
- Eagle → Bird
- Frog → Amphibian
- Whale → Mammal
- Snake → Reptile
(1 mark for each correct match; total 3 marks if all four are correct)
Marking note: Award 1 mark per correct line. If a student draws lines incorrectly, deduct accordingly.
18. (3 marks)
Any three of the following characteristics (1 mark each):
- Living things need air, water, and food to survive.
- Living things can grow.
- Living things can reproduce.
- Living things can move by themselves.
- Living things respond to changes in their surroundings.
Marking note: Accept any valid characteristic of living things. Do not accept vague answers like "they are alive" without further explanation.
19. (3 marks)
| Organism | Group |
|---|---|
| Fern | Plant |
| Bee | Animal |
| Yeast | Fungus |
(1 mark for each correct classification)
Marking note: Fern is a non-flowering plant. Bee is an insect (animal). Yeast is a type of fungus.
20. (3 marks)
The student is wrong because:
(a) A robot cannot reproduce / cannot produce young of its own kind.
(b) A robot cannot grow on its own / does not carry out life processes / needs a human to program and power it.
(1 mark for each valid reason; total 3 marks if both reasons are well-explained)
Marking note: Accept any two valid reasons that explain why a robot is non-living. Common acceptable answers include: cannot reproduce, cannot grow naturally, does not need food/water/air, does not respond to stimuli on its own, is made of non-living materials.
Total: 30 marks