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Primary 4 Science Semestral Assessment 2 (End of Year) Paper 5

Free P4 Science SA2 Paper 5, HY3 Exam version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Questions

TuitionGoWhere Exam Practice (AI) — Science Primary 4

School: TuitionGoWhere Exam Practice (AI) Subject: Science Level: Primary 4 Paper: SA2 Practice Paper (Version 5 of 5) Duration: 60 minutes Total Marks: 40 Name: ______________________ Class: ______________________ Date: ______________________

Instructions:

This paper has 20 questions on the topic of Diversity.
Section A: 10 short questions (1 mark each). Section B: 6 questions (2 marks each). Section C: 4 questions (3 marks each).
Write your answers in the spaces provided.
Total marks = 40. Use the full 60 minutes including review.

Section A (10 marks)

Which of the following is a living thing?
A) Rock
B) Cloud
C) Fern
D) Water
Which of the following is non-living?
A) Cat
B) Table
C) Grass
D) Frog
A dog can move by itself. This shows it is a ________ thing.
Which of these needs air to survive?
A) Plastic toy
B) Book
C) Fish
D) Stone
Plants make their own food using sunlight. This is a characteristic of ________ things.
Which of the following can reproduce?
A) Chair
B) Mushroom
C) Shoe
D) Pencil
A bicycle does not grow or breathe. It is a ________ thing.
Which of these is a living thing that lives in water?
A) Crab
B) Brick
C) Paper
D) Sand
A seed sprouts and becomes a plant. This shows ________.
A) Non-living growth
B) Living reproduction and growth
C) Weathering
D) Melting
Which of the following is NOT a sign of a living thing?
A) Breathing
B) Needing food
C) Being made by a factory
D) Reproducing

Section B (12 marks)

List two characteristics of living things. (2m)
a) ________________________
b) ________________________
Give two reasons why a car is non-living. (2m)
a) ________________________
b) ________________________
Classify the following into living or non-living: rose, cup, bird, balloon. (2m)
Living: ________________________
Non-living: ________________________
Explain why a tree is a living thing. (2m)

A snail moves, eats and lays eggs. Is it living or non-living? Give two reasons. (2m)

Some objects look alive but are not. Give one example and explain. (2m)

Section C (12 marks)

Study the group of objects below.
Group: cat, boy, plant, rock, toy car, fish
(a) Circle the living things. (1m)
(b) Give one characteristic shown by the living things you chose. (1m)
(c) Why is the rock non-living? (1m)

A student says: "My teddy bear is alive because it is soft and looks like a bear."
(a) Is the teddy bear living? (1m)
(b) Give two reasons to support your answer. (2m)

Look at the table of observations.

Object	Moves by itself?	Needs food?	Reproduces?
Bee	Yes	Yes	Yes
Eraser	No	No	No

(a) Which is living? (1m)
(b) State two pieces of evidence from the table. (2m)

Explain how you can tell that a mushroom is a living thing even though it does not move like an animal. (3m)

Answers

Answer Key — SA2 Practice Paper Version 5 (Diversity)

Level: Primary 4 Science
Total Marks: 40
Topic: Diversity (living and non-living things)

Section A (10 marks)

C) Fern
Teaching note: Living things include plants, animals, fungi. Fern is a plant → living. Rock, cloud, water are non-living.
B) Table
Teaching note: Table is made by humans from wood/plastic, does not breathe/grow/reproduce → non-living.
living
Teaching note: Movement by itself is a characteristic of living things.
C) Fish
Teaching note: Fish is living and uses dissolved air (oxygen) in water to breathe.
living
Teaching note: Making food using sunlight (photosynthesis) is a life process of plants.
B) Mushroom
Teaching note: Mushroom is a fungus; it reproduces by spores → living.
non-living
Teaching note: No growth, breathing, or reproduction → non-living.
A) Crab
Teaching note: Crab is an animal that lives in water; others are non-living.
B) Living reproduction and growth
Teaching note: Seed to plant shows life cycle of a living thing.
C) Being made by a factory
Teaching note: Factory-made objects are non-living; other options are life signs.

Section B (12 marks)

(2m) Any two correct: breathes, grows, needs food, reproduces, moves by itself, responds.
Marking: 1m each.
(2m) Example: does not breathe (1m), does not reproduce (1m).
Teaching note: Car is machine, no life processes.
(2m) Living: rose, bird (1m). Non-living: cup, balloon (1m).
Common mistake: Putting balloon as living due to floating.
(2m) Tree is living because it grows from seed, makes food by sunlight, and reproduces (seeds). (2m for two valid points)
Marking descriptors: 1m for stating living, 1m for correct reason.
(2m) Living. Reasons: moves (1m), lays eggs/reproduces (1m).
Teaching note: Snail shows animal life processes.
(2m) Example: wind-up toy (1m) moves but is non-living because it does not eat or grow (1m).

Section C (12 marks)

(3m)
(a) Living: cat, boy, plant, fish (1m all correct)
(b) Example characteristic: they breathe / grow / need food (1m)
(c) Rock is non-living because it does not show life processes such as growing or reproducing (1m)
(3m)
(a) No, not living (1m)
(b) Reasons: made by factory (1m), cannot breathe/eat/reproduce (1m)
(3m)
(a) Bee (1m)
(b) Evidence: moves by itself, needs food, reproduces (any two, 1m each)
(3m) Mushroom is living because it grows from spores, reproduces, and gets nutrients (3m: 1m each valid point).
Teaching note: Not all living things move like animals; fungi are living.

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