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Primary 3 Science Weighted Assessment 2 (Term 3) Paper 2

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Primary 3 Science From Real Exams Generated by Claude Sonnet 4 Updated 2026-06-03

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Questions

TuitionGoWhere Primary 3 Science WA2 2026 (Version 2)

Name: ______________________ Class: ______ Date: ____________

Duration: 45 minutes
Total Marks: 50

Section A: Multiple Choice Questions (15 marks)

Choose the correct answer and write the letter (A, B, C, or D) in the brackets provided. Each question is worth 1 mark.

1. Which of the following is NOT a characteristic of living things?

(A) They need food
(B) They can grow
(C) They can move on their own
(D) They are made of metal

( )

2. Which part of a flowering plant produces seeds?

(A) Leaf
(B) Root
(C) Flower
(D) Stem

( )

3. A caterpillar is the __________ stage of a butterfly's life cycle.

(A) egg
(B) larva
(C) pupa
(D) adult

( )

4. Which of the following animals gives birth to live young?

(A) Chicken
(B) Fish
(C) Rabbit
(D) Turtle

( )

5. Xiao Ming is at a hawker centre in Tampines. He uses his tongue to taste his favourite chicken rice. What sense is he using?

(A) Sight
(B) Smell
(C) Taste
(D) Touch

( )

6. What is the main function of the heart?

(A) To help us breathe
(B) To pump blood around the body
(C) To digest food
(D) To help us think

( )

7. Which of the following is a bird?

(A) Bat
(B) Penguin
(C) Butterfly
(D) Flying fish

( )

8. The ears help us to detect:

(A) Light
(B) Smell
(C) Sound
(D) Taste

( )

9. Which stage comes after the pupa in a butterfly's life cycle?

(A) Egg
(B) Larva
(C) Caterpillar
(D) Adult butterfly

( )

10. Aminah went swimming at the Jurong East Swimming Complex. Which body parts help her to swim?

(A) Eyes and ears
(B) Arms and legs
(C) Nose and tongue
(D) Heart and lungs

( )

11. Which of the following is NOT a healthy habit?

(A) Brushing teeth twice a day
(B) Drinking 8 glasses of water daily
(C) Eating junk food every day
(D) Exercising for 30 minutes daily

( )

12. What type of animal is a frog?

(A) Mammal
(B) Reptile
(C) Amphibian
(D) Fish

( )

13. Which organ helps us to see?

(A) Ears
(B) Eyes
(C) Nose
(D) Tongue

( )

14. Plants make their own food in the:

(A) Roots
(B) Stem
(C) Leaves
(D) Flowers

( )

15. Which animal has scales on its body?

(A) Dog
(B) Frog
(C) Chicken
(D) Snake

( )

Section B: Short Answer Questions (20 marks)

Answer all questions in the spaces provided.

16. Study the diagram showing the parts of a plant.

        [Flower]
           |
        [Leaf]---[Leaf]
           |
        [Stem]
           |
        [Roots]

(a) Name the part of the plant that absorbs water and minerals from the soil. (1 mark)

(b) State ONE function of the leaf. (1 mark)

17. The table below shows information about four animals.

Animal	Number of Legs	Body Covering	How it Breathes
Dog	4	Fur	Lungs
Fish	0	Scales	Gills
Grasshopper	6	Hard outer covering	Tiny holes
Snake	0	Scales	Lungs

(a) Which animal in the table is an insect? (1 mark)

(b) Give ONE reason for your answer in (a). (1 mark)

18. Look at the life cycle of a mosquito below.

[Eggs in water] → [Larva (wriggler)] → [Pupa (tumbler)] → [Adult mosquito]

(a) How many stages are there in the life cycle of a mosquito? (1 mark)

(b) Does the mosquito go through complete or incomplete metamorphosis? (1 mark)

19. Farah's younger brother, Danial, is 2 years old.

(a) Name TWO senses that Danial uses when eating an apple. (2 marks)

(b) Which sense organ does Danial use to tell if the apple is sweet or sour? (1 mark)

20. Complete the following table about body parts and their functions. (3 marks)

Body Part	Function
Heart	_________________________
Lungs	To breathe in oxygen and breathe out carbon dioxide
Brain	_________________________
Stomach	_________________________

21. Mr Lim grows vegetables in his garden at his house in Yishun.

(a) Name TWO things the vegetable plants need to grow well. (2 marks)

(b) Why do plants need sunlight? (1 mark)

22. Rachel noticed that her skin turns red when she stays in the sun for too long.

(a) What should Rachel do to protect her skin from the sun? (1 mark)

(b) Name ONE other way Rachel can keep her skin healthy. (1 mark)

Section C: Word Problems (15 marks)

Answer all questions in the spaces provided.

23. Aisyah has a pet hamster. She noticed that her hamster has fur and gives birth to live young.

(a) What group of animals does the hamster belong to? (1 mark)

(b) State TWO characteristics of this animal group. (2 marks)

24. The diagram below shows the life cycle of a plant.

[Seed] → [Germination] → [Young plant (seedling)] → [Adult plant with flowers] → [Fruits with seeds]
                                                              ↓
                                                    (Seeds fall to ground)

(a) What happens during germination? (1 mark)

(b) Why does a plant produce flowers? (1 mark)

25. Joshua is learning about the five senses in school.

(a) Complete the table below. (3 marks)

Situation	Sense Used	Sense Organ
Listening to music	Hearing	__________
Reading a book	__________	Eyes
Smelling durian	Smell	__________

(b) Why is it important to have five senses? Give ONE reason. (1 mark)

26. Grandma Wong wants to stay healthy. She is 65 years old.

(a) Name TWO healthy habits Grandma Wong should practise. (2 marks)

(b) Explain why regular exercise is important for Grandma Wong's health. (1 mark)

End of Paper

Answers

TuitionGoWhere Primary 3 Science WA2 2026 (Version 2) - Answer Key

Total Marks: 50

Section A: Multiple Choice Questions (15 marks)

Question	Answer	Explanation
1	D	Living things are not made of metal. They need food, can grow, and can move.
2	C	The flower produces seeds for reproduction.
3	B	The caterpillar is the larva stage of the butterfly life cycle.
4	C	Rabbits are mammals and give birth to live young.
5	C	The tongue is used for tasting food.
6	B	The heart pumps blood around the body.
7	B	Penguins are birds (have feathers, lay eggs, have beaks). Bats are mammals.
8	C	Ears are the sense organs for detecting sound.
9	D	After the pupa stage, the adult butterfly emerges.
10	B	Arms and legs are used for swimming movements.
11	C	Eating junk food every day is unhealthy.
12	C	Frogs are amphibians (live both on land and in water).
13	B	Eyes are the sense organs for sight.
14	C	Leaves make food for the plant through photosynthesis.
15	D	Snakes have scales covering their body.

Section B: Short Answer Questions (20 marks)

16. (a) Roots absorb water and minerals from the soil. (1 mark)

(b) Accept any ONE:

The leaf makes food for the plant
The leaf absorbs sunlight for photosynthesis
The leaf takes in carbon dioxide (1 mark)

17. (a) Grasshopper is an insect. (1 mark)

(b) Accept any ONE:

It has 6 legs
It has 3 body parts
It has a hard outer covering (exoskeleton) (1 mark)

18. (a) There are 4 stages in the life cycle of a mosquito. (1 mark)

(b) The mosquito goes through complete metamorphosis. (1 mark)

19. (a) Accept any TWO: (2 marks - 1 mark each)

Sight (to see the apple)
Touch (to feel the texture)
Taste (to taste the apple)
Smell (to smell the apple)
Hearing (to hear the crunch)

(b) Danial uses his tongue to tell if the apple is sweet or sour. (1 mark)

20. (3 marks - 1 mark each)

Body Part	Function
Heart	To pump blood around the body
Lungs	To breathe in oxygen and breathe out carbon dioxide
Brain	To control the body / To help us think / To control our senses
Stomach	To digest food / To break down food

21. (a) Accept any TWO: (2 marks - 1 mark each)

Water
Sunlight
Air
Nutrients/minerals from soil

(b) Plants need sunlight to make food / for photosynthesis. (1 mark)

22. (a) Accept any ONE:

Apply sunscreen
Wear a hat
Stay in the shade
Wear long sleeves (1 mark)

(b) Accept any ONE:

Drink plenty of water
Wash skin regularly
Eat healthy food
Get enough sleep (1 mark)

Section C: Word Problems (15 marks)

23. (a) The hamster belongs to the mammal group. (1 mark)

(b) Accept any TWO characteristics of mammals: (2 marks - 1 mark each)

Has fur/hair on body
Gives birth to live young
Feeds young with milk
Breathes using lungs
Is warm-blooded

24. (a) During germination, the seed starts to grow / the seed sprouts / a small root and shoot grows from the seed. (1 mark)

(b) A plant produces flowers to make seeds / for reproduction. (1 mark)

By wind
By water
By animals
By humans
By explosion (self-dispersal)

25. (a) (3 marks - 1 mark each)

Situation	Sense Used	Sense Organ
Listening to music	Hearing	Ears
Reading a book	Sight	Eyes
Smelling durian	Smell	Nose

(b) Accept any ONE:

The five senses help us learn about the world around us
They help us detect danger
They help us enjoy food and experiences
They help us communicate with others (1 mark)

26. (a) Accept any TWO: (2 marks - 1 mark each)

Exercise regularly
Eat healthy food / balanced diet
Get enough sleep / rest
Drink plenty of water
Go for regular medical check-ups
Wash hands regularly

(b) Accept any ONE:

Regular exercise keeps her muscles and bones strong
Exercise helps her heart stay healthy
Exercise helps her stay active and mobile
Exercise helps maintain a healthy weight (1 mark)

She may become dehydrated
She may feel tired and weak
She may get headaches
Her body may not function properly (1 mark)

End of Answer Key

Marking Scheme Summary

Section	Questions	Marks
A	MCQ (1-15)	15
B	Short Answer (16-22)	20
C	Word Problems (23-26)	15
Total		50