Primary 6 PSLE Science Semestral Assessment 2 (End of Year) Paper 1

TuitionGoWhere Exam Practice (AI) — Science Primary 6 PSLE

SA2 Practice Paper — Diversity (Version 1 of 5)

School: TuitionGoWhere Exam Practice (AI)
Subject: Science
Level: Primary 6 (PSLE)
Paper: SA2 Practice — Topic: Diversity
Version: 1 of 5
Duration: 60 minutes
Total Marks: 40
Name: ______________________
Class: _________
Date: ____________

Instructions:

• This paper contains 20 questions on the topic of Diversity.
• Section A: 10 multiple-choice questions (1 mark each).
• Section B: 6 short-answer questions (2 marks each).
• Section C: 4 structured questions (total 8 marks).
• Answer all questions in the spaces provided.
• Use a pencil to shade or write your answers clearly.

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Section A (10 marks)

Choose the correct option for each question.

1. Which of the following is an example of diversity among living things?
A. A cat and a dog having different fur colours
B. A boy running faster than a girl
C. A plant growing taller in sunlight
D. Water freezing into ice

2. Which group of organisms can make their own food?
A. Consumers
B. Decomposers
C. Producers
D. Predators

3. A population is best described as:
A. All living things in a pond
B. A group of the same kind of organisms living together
C. One rabbit in a field
D. Different animals in a forest

4. Which habitat would most likely support a community of fish, water plants, and frogs?
A. Desert
B. Pond
C. Mountain top
D. Car park

5. An adaptation that helps a cactus survive in dry conditions is:
A. Broad leaves
B. Thick stem to store water
C. Bright flowers
D. Deep roots for shade

6. Which of the following is a decomposer?
A. Grass
B. Frog
C. Mushroom
D. Hawk

7. Diversity in non-living things can be seen in:
A. Different types of rocks
B. Same breed of dogs
C. One species of tree
D. Identical cups

8. A food chain shows:
A. How animals play
B. The flow of energy from the Sun to producers to consumers
C. The life cycle of a butterfly
D. How plants reproduce

9. Which is a behavioural adaptation?
A. A bird building a nest
B. A fish having gills
C. A lion having sharp teeth
D. A leaf being green

10. Man's positive impact on the environment includes:
A. Cutting down all trees
B. Reforesting a cleared hill
C. Dumping rubbish into the sea
D. Burning plastic openly

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Section B (12 marks)

Answer each question in the space provided.

11. State one way in which organisms in a community depend on each other. (2 marks)

12. Give two examples of different habitats and name one organism found in each. (2 marks)

13. Explain why a polar bear's thick fur is an adaptation. (2 marks)

14. What is the difference between a population and a community? (2 marks)

15. List two negative impacts of man on the environment. (2 marks)

16. Describe one structural adaptation of a plant and how it helps the plant. (2 marks)

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Section C (8 marks)

Answer the following structured questions.

17. The diagram below shows a simple food chain.

Generated diagram for Q17.

(a) Name the producer in the food chain. (1 mark)
(b) What would happen if all the grass died? Explain. (1 mark)

18. A garden has many roses, bees, ants, and earthworms.
(a) Which of these are producers? (1 mark)
(b) Name one decomposer from the list and state its role. (1 mark)

19. Fill in the table for diversity of living things. (2 marks)

Group	Example	Feature showing diversity
Plant	_________	_________
Animal	_________	_________

20. Explain how replanting trees helps maintain diversity. (2 marks)