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Primary 3 Science Semestral Assessment 2 (End of Year) Paper 1
Free P3 Science SA2 Paper 1, HY3 Exam version, with questions, answers, and syllabus-aligned practice for Singapore students.
These static practice materials are generated from the site's syllabus and paper-generation workflow, with source and model context shown so students and parents can evaluate the material before use.
Questions
TuitionGoWhere Exam Practice (AI) - Science Primary 3
School: TuitionGoWhere Exam Practice (AI)
Subject: Science
Level: Primary 3
Paper: SA2 Practice Paper (Version 1 of 5)
Duration: 60 minutes
Total Marks: 40
Name: ______________________
Class: _________
Date: ____________
Instructions:
- This paper has 20 questions on the topic of Diversity.
- Answer all questions in the spaces provided.
- Section A: 10 multiple-choice questions (1 mark each). Section B: 6 short-answer questions (2 marks each). Section C: 4 structured questions (1-3 marks each).
- Use a pencil to write your answers.
Section A (10 marks)
Choose the correct answer and write its letter in the box.
-
Which of the following is a living thing?
A) A toy robot
B) A cactus plant
C) A wooden chair
D) A plastic cup
[ ] -
Which characteristic shows that a cat is a living thing?
A) It is soft
B) It can reproduce
C) It is coloured
D) It is small
[ ] -
A butterfly has wings and six legs. Which group does it belong to?
A) Fish
B) Bird
C) Insect
D) Mammal
[ ] -
Which of these is a fungus?
A) Fern
B) Mushroom
C) Grass
D) Rose
[ ] -
Which material is natural?
A) Plastic bag
B) Cotton shirt
C) Glass cup
D) Nylon rope
[ ] -
A raincoat keeps a person dry. Which property must the material have?
A) Transparent
B) Flexible
C) Waterproof
D) Hard
[ ] -
Which animal breathes with gills and has scales?
A) Frog
B) Lizard
C) Goldfish
D) Sparrow
[ ] -
Bacteria are best described as:
A) Plants
B) Non-living things
C) Microorganisms
D) Insects
[ ] -
Which material would be most suitable for a window pane so we can see through it?
A) Wood
B) Rubber
C) Glass
D) Fabric
[ ] -
A teddy bear looks like a bear and has fur. Why is it non-living?
A) It cannot grow by itself
B) It is brown
C) It is soft
D) It is small
[ ]
Section B (12 marks)
Answer each question in the space provided. Each question is 2 marks.
- List two characteristics that all living things share.
-
Classify the following into living and non-living: rose, rock, dog, spoon.
Living: ______________________
Non-living: ______________________ -
Name one property of rubber that makes it useful for making shoe soles.
- State one way fungi are different from plants.
- A boy wears a wool sweater. Wool is a natural material. Name one other natural material and its source.
- Explain why a metal pan is suitable for cooking.
Section C (18 marks)
- The table below shows four animals and their features. (3 marks)
| Animal | Body covering | Breathes with | Group |
|---|---|---|---|
| Sparrow | Feathers | Lungs | ? |
| Shark | Scales | Gills | ? |
| Frog | Smooth skin | Lungs & skin | ? |
| Bee | Hard shell | Air tubes | ? |
(a) Fill in the group for each animal. (2 marks)
(b) Which animal is a mammal? If none, write "None". (1 mark)
- Study the objects below. (4 marks)
- A wooden desk
- A plastic bottle
- A cotton towel
- A glass jar
(a) Which two are natural materials? (1 mark)
(b) Which material is transparent? (1 mark)
(c) Give one reason why plastic is useful for the bottle. (2 marks)
- Look at the picture described. (5 marks)
Image pending generation: diagram for 19.
(a) Which two things in the picture are living? (2 marks)
(b) Give one reason why the rubber duck is non-living. (1 mark)
(c) Name one characteristic of the water lily that shows it is a plant. (2 marks)
- Material test results are shown. (6 marks)
| Material | Absorbs water? | Bends without breaking? | Lets light through? |
|---|---|---|---|
| Paper | Yes | Yes | Some |
| Steel | No | No | None |
| Cloth | Yes | Yes | Some |
(a) Which material is waterproof? (1 mark)
(b) Why is steel not used to make a raincoat? (2 marks)
(c) Suggest a use for cloth based on its properties. (1 mark)
(d) State one property of paper that makes it good for writing. (2 marks)
Answers
Answer Key - SA2 Practice Paper Version 1 (Primary 3 Science: Diversity)
Total Marks: 40
Section A (10 marks)
-
B
Teaching note: A cactus plant is living (needs air, water, food; grows). Toys, wood, plastic are non-living. Common mistake: choosing toy robot because it moves – movement by battery is not living. -
B
Teaching note: Reproduction is a characteristic of living things. Softness, colour, size are not proof of life. -
C
Teaching note: Insects have wings and six legs (3 body parts). Fish have fins/scales, birds have feathers, mammals have fur. -
B
Teaching note: Mushroom is a fungus. Fern, grass, rose are plants. -
B
Teaching note: Cotton is natural (from cotton plant). Plastic, glass, nylon are man-made. -
C
Teaching note: Waterproof means water cannot pass through, keeping person dry. -
C
Teaching note: Goldfish has scales and gills. Frog is amphibian, lizard reptile, sparrow bird. -
C
Teaching note: Bacteria are microorganisms (living but tiny). Not plants, not insects, not non-living. -
C
Teaching note: Glass is transparent (lets light through) for window. Wood/rubber/fabric not clear. -
A
Teaching note: Teddy bear cannot grow by itself; it is non-living though it looks like a bear.
Section B (12 marks)
-
(2 marks) Any two from: need air / need water / need food / grow / reproduce / respond to changes / move by themselves.
Marking: 1 mark per correct characteristic. -
(2 marks) Living: rose, dog. Non-living: rock, spoon.
Marking: 1 mark each list correct. -
(2 marks) Flexible (bends without breaking) OR waterproof (if treated).
Teaching note: Rubber bends, good for soles to grip. -
(2 marks) Fungi do not make their own food like plants (or: fungi are not green, not plants).
Marking: 1 mark for stating difference. -
(2 marks) Example: wood (from tree), leather (from animal skin), cotton (from plant).
Marking: 1 mark name, 1 mark source. -
(2 marks) Metal is strong and conducts heat well, so it can be heated for cooking.
Marking: 1 mark property, 1 mark use link.
Section C (18 marks)
-
(3 marks)
(a) Sparrow – Bird; Shark – Fish; Frog – Amphibian; Bee – Insect. (2 marks: 0.5 each)
(b) None. (1 mark)
Teaching note: Mammals have fur/hair and lungs; none in table. -
(4 marks)
(a) Wooden desk, cotton towel. (1 mark)
(b) Glass jar. (1 mark)
(c) Plastic is waterproof / light / does not break easily, good for holding water. (2 marks: property + reason) -
(5 marks) Based on image_placeholder Q19-fig1: fish, water lily labelled living; stone, rubber duck non-living.
(a) Fish, water lily. (2 marks)
(b) Rubber duck cannot grow / not alive. (1 mark)
(c) Has leaves/flowers, grows in water, makes food (any plant characteristic). (2 marks) -
(6 marks)
(a) Steel. (1 mark: absorbs no water)
(b) Steel is not flexible, heavy, not waterproof? Actually steel not waterproof? It does not absorb but is hard; answer: steel does not bend, is heavy, not suitable for clothing. (2 marks: property + reason)
(c) Cloth for clothes / towel. (1 mark)
(d) Paper absorbs ink / bends / light to carry. (2 marks: property + writing link)
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