Primary 6 PSLE Science Practice Paper 2

TuitionGoWhere Practice Paper - Science Primary 6 PSLE

TuitionGoWhere Practice Paper (AI)

Subject: Science
Level: Primary 6 PSLE
Paper: Practice Paper (Topic: Diversity) – Version 2 of 5
Duration: 45 minutes
Total Marks: 40
Name: ___________________________
Class: ________
Date: ____________

Instructions:

• This practice paper has 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.
• No past-year exam evidence was used; this is syllabus-first AI-generated practice content.

Section A (10 marks)

Answer all questions. Each question carries 1 mark.

1. Which of the following best describes biodiversity?
   A. The number of animals in a zoo
   B. The variety of living things in a habitat
   C. The size of the largest tree
   D. The amount of rainfall in a forest

2. A scientist groups organisms by whether they have a backbone. This is a form of:
   A. Feeding habit classification
   B. Habitat classification
   C. Diversity based on body structure
   D. Colour classification

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

4. Mangrove swamps and gardens are examples of different:
   A. Populations
   B. Communities
   C. Habitats
   D. Organisms

5. An organism that breaks down dead leaves is a:
   A. Producer
   B. Decomposer
   C. Consumer
   D. Predator

6. Which of these is a structural adaptation?
   A. A bird migrating south
   B. A lizard basking in the sun
   C. A cactus storing water in its stem
   D. A dog barking at strangers

7. A food chain always starts with:
   A. A predator
   B. A consumer
   C. A producer
   D. A decomposer

8. Which of the following is a negative impact of man on the environment?
   A. Planting trees
   B. Building nature reserves
   C. Dumping rubbish into rivers
   D. Using less plastic

9. A group of the same type of fish living in a pond is a:
   A. Community
   B. Population
   C. Habitat
   D. Ecosystem

10. Which physical factor does NOT directly affect where an organism can live?
    A. Temperature
    B. Light
    C. Colour of the organism
    D. Water availability

Section B (12 marks)

Answer all questions. Each question carries 2 marks.

11. Name two types of habitats and one organism found in each.

12. Explain the difference between a population and a community.

13. State two ways animals are adapted to obtain food. Give an example for each.

14. Describe how decomposers help the environment.

15. Give one positive and one negative impact of man on the environment.

16. A student sees a butterfly and a bee in a garden. Both can fly. Explain why this similarity does not mean they are the same species.

Section C (8 marks)

Answer all 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) State the role of the frog. (1 mark)

18. Read the passage.
    "Pangolins are nocturnal animals that curl into a ball when threatened. They eat ants using a long sticky tongue. Their scales protect them from predators."
    (a) Name one behavioural adaptation shown. (1 mark)
    (b) Name one structural adaptation shown. (1 mark)

19. A pond community has tadpoles, algae, frogs, and dragonfly larvae.
    (a) Which organism is the producer? (1 mark)
    (b) Suggest what may happen if all frogs are removed by pollution. (1 mark)

20. Man cuts down a forest to build houses.
    (a) State one way this reduces diversity. (1 mark)
    (b) Suggest one action to reduce the impact. (1 mark)