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Primary 4 Science Practice Paper 4

Free P4 Science Practice Paper 4, Ox AI 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.

Primary 4 Science AI Generated Generated by Ox Alpha Updated 2026-08-27

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Questions

TuitionGoWhere Practice Paper - Science Primary 4

TuitionGoWhere Practice Paper (AI)

Subject: Science Level: Primary 4 Paper: Practice Paper — Topic: Diversity (Version 4 of 5) Duration: 60 minutes Total Marks: 60

Name: ______________________ Class: ____________ Date: ______________

About This Practice Paper (Please Read)

This is an AI-generated practice paper, created from LLM-inferred question patterns and the MOE Primary Science Syllabus (2023). No past-year paper evidence was available for this group, so this paper is not exam-derived and makes no claim to be.

Syllabus note: In the MOE 2023 syllabus, Diversity (of living and non-living things, and of materials) is formally a Primary 3 topic. This paper was generated on request for the topic "Diversity" and is pitched as a Primary 3–4 bridge/revision level: the science ideas are foundational, while question styles (tables, classification keys, fair tests, explaining with reasons) train the scaffolded application skills expected in Primary 4.

Instructions

Answer all 20 questions.
Section A (Questions 1–10): Circle the correct option A, B, C or D in the brackets provided. Each question carries 2 marks.
Section B (Questions 11–15) and Section C (Questions 16–20): Write your answers in the spaces provided. Marks for each question are shown in brackets.
For explanation questions, always give a reason using scientific words you have learnt.
Check your work in the last 5 minutes.

Section	Questions	Marks
A	1 – 10	20
B	11 – 15	20
C	16 – 20	20
Total		60

Section A: Multiple Choice (Questions 1–10, 20 marks)

Circle the correct answer. Each question carries 2 marks.

1. Which list contains only living things?

A. robot, computer, handphone B. moss, mushroom, fern C. rain, river, rock D. stone, glass, metal spoon

Answer: ( )

2. When Aini touches a mimosa (putri malu) plant, its leaves fold up quickly. Which characteristic of living things does this show?

A. It needs air. B. It responds to changes around it. C. It can reproduce. D. It can grow.

Answer: ( )

3. Sam groups a penguin, an eagle and a chicken together. On what characteristic did he sort them?

A. They can fly. B. They have feathers. C. They live near water. D. They eat fish.

Answer: ( )

4. Which organism is a fungus?

A. moss B. toadstool C. fern D. seaweed

Answer: ( )

5. Ravi wants a window that lets him see outside but keeps the rain out. Which material is most suitable?

A. clear glass B. cardboard C. metal sheet D. brick

Answer: ( )

6. Which material is most suitable for a watch strap that must bend comfortably around the wrist?

A. rubber B. glass C. wood D. porcelain

Answer: ( )

7. Which material would keep a person driest in the rain?

A. paper B. wool C. plastic D. cotton

Answer: ( )

8. Mei sorted some animals into two groups:

Group X	Group Y
shark, seahorse, prawn	cat, pigeon, hamster

What was her sorting characteristic?

A. has fins B. lives in water C. lays eggs D. has four legs

Answer: ( )

9. In which place will mould grow fastest?

A. a dry biscuit in a cupboard B. a slice of wet bread in a warm cupboard C. a piece of cheese in a freezer D. uncooked rice in a sealed jar

Answer: ( )

10. A chair leg is made of metal instead of plastic mainly because metal is

A. stronger and harder to bend. B. always cheaper than plastic. C. lighter than all plastics. D. able to float on water.

Answer: ( )

Section B


```html
<stage5_exam_md>
# TuitionGoWhere Practice Paper - Science Primary 4

**TuitionGoWhere Practice Paper (AI)**

**Subject:** Science
**Level:** Primary 4
**Paper:** Practice Paper — Topic: Diversity (Version 4 of 5)
**Duration:** 60 minutes
**Total Marks:** 60

**Name:** ______________________ **Class:** ____________ **Date:** ______________

---

### About This Practice Paper (Please Read)

This is an **AI-generated practice paper**, created from LLM-inferred question patterns and the MOE Primary Science Syllabus (2023). **No past-year paper evidence was available for this group**, so this paper is **not exam-derived** and makes no claim to be.

**Syllabus note:** In the MOE 2023 syllabus, *Diversity* (of living and non-living things, and of materials) is formally a **Primary 3** topic. This paper was generated on request for the topic "Diversity" and is pitched as a **Primary 3–4 bridge/revision level**: the science ideas are foundational, while question styles (tables, classification keys, fair tests, explaining with reasons) train the scaffolded application skills expected in Primary 4.

### Instructions

1. Answer **all** 20 questions.
2. **Section A (Questions 1–10):** Circle the correct option A, B, C or D in the brackets provided. Each question carries **2 marks**.
3. **Section B (Questions 11–15)** and **Section C (Questions 16–20):** Write your answers in the spaces provided. Marks for each question are shown in brackets.
4. For explanation questions, always give a **reason** using scientific words you have learnt.
5. Check your work in the last 5 minutes.

| Section | Questions | Marks |
|---|---|---|
| A | 1 – 10 | 20 |
| B | 11 – 15 | 20 |
| C | 16 – 20 | 20 |
| **Total** | | **60** |

---

## Section A: Multiple Choice (Questions 1–10, 20 marks)

*Circle the correct answer. Each question carries 2 marks.*

**1.** Which list contains **only living things**?

A. robot, computer, handphone
B. moss, mushroom, fern
C. rain, river, rock
D. stone, glass, metal spoon

Answer: ( )

**2.** When Aini touches a mimosa (*putri malu*) plant, its leaves fold up quickly. Which characteristic of living things does this show?

A. It needs air.
B. It responds to changes around it.
C. It can reproduce.
D. It can grow.

Answer: ( )

**3.** Sam groups a penguin, an eagle and a chicken together. On what characteristic did he sort them?

A. They can fly.
B. They have feathers.
C. They live near water.
D. They eat fish.

Answer: ( )

**4.** Which organism is a **fungus**?

A. moss
B. toadstool
C. fern
D. seaweed

Answer: ( )

**5.** Ravi wants a window that lets him see outside but keeps the rain out. Which material is most suitable?

A. clear glass
B. cardboard
C. metal sheet
D. brick

Answer: ( )

**6.** Which material is most suitable for a watch strap that must bend comfortably around the wrist?

A. rubber
B. glass
C. wood
D. porcelain

Answer: ( )

**7.** Which material would keep a person **driest** in the rain?

A. paper
B. wool
C. plastic
D. cotton

Answer: ( )

**8.** Mei sorted some animals into two groups:

| Group X | Group Y |
|---|---|
| shark, seahorse, prawn | cat, pigeon, hamster |

What was her sorting characteristic?

A. has fins
B. lives in water
C. lays eggs
D. has four legs

Answer: ( )

**9.** In which place will **mould grow fastest**?

A. a dry biscuit in a cupboard
B. a slice of wet bread in a warm cupboard
C. a piece of cheese in a freezer
D. uncooked rice in a sealed jar

Answer: ( )

**10.** A chair leg is made of metal instead of plastic mainly because metal is

A. stronger and harder to bend.
B. always cheaper than plastic.
C. lighter than all plastics.
D. able to float on water.

Answer: ( )

---

## Section B: Short Answer (Questions 11–15, 20 marks)

*Write your answers in the spaces provided. Each question carries 4 marks.*

**11.** Kai sorted eight things into two groups. Write each item in the correct column of the table. [4]

Things: fern, raincoat, mushroom, wooden ruler, moss, plastic bottle, toadstool, glass marble

| Group P: Living things | Group Q: Non-living things |
|---|---|
| | |
| | |
| | |
| | |

**12.** Amina observed a snail in her garden. She saw it crawl slowly towards a leaf, eat the leaf, and grow bigger over the weeks. State **three** observations and match each to a characteristic of living things. [4]

Observation 1: ______________________ Characteristic: ______________________

Observation 2: ______________________ Characteristic: ______________________

Observation 3: ______________________ Characteristic: ______________________

**13.** Complete the table below. For each object, state the material it is made from and **one property** of that material that makes it suitable. One has been done for you. [4]

| Object | Material | Property that makes it suitable |
|---|---|---|
| Window pane | clear glass | transparent, lets light through |
| Car tyre | | |
| Cooking pot | | |
| Bath towel | | |

**14.** Devi says a toadstool growing on a rotting log is a plant because it does not move. Give **two** reasons why a toadstool is **not** a plant. [4]

Reason 1: ________________________________________________

Reason 2: ________________________________________________

**15.** Study the animals below: guppy, sparrow, frog, crocodile.

Complete the sorting chart by writing each animal in the correct box. [4]

Animals ├── Has hair/fur ──► Box W ├── Has feathers ──► Box X ├── Has dry scales ──► Box Y └── Has moist skin ──► Box Z


Box W: ____________ Box X: ____________ Box Y: ____________ Box Z: ____________

---

## Section C: Open-Ended (Questions 16–20, 20 marks)

*Write your answers clearly. Each question carries 4 marks.*

**16.** Siti wants to find out whether **light** affects how fast mould grows on bread. She places two identical slices of white bread, each moistened with 5 ml of water, in two sealed bags. Bag A is placed in a sunny cupboard and Bag B in a dark cupboard at the same temperature.

a) State the variable Siti changed. [1]
b) State **two** variables she kept the same. [2]
c) What should Siti observe and compare after five days to reach a conclusion? [1]

**17.** Raincoats are made of plastic instead of cotton. Explain why plastic is a more suitable material for a raincoat. [4]

**18.** Copy and complete the table to compare a fish and a bird. [4]

| Feature | Fish | Bird |
|---|---|---|
| Body covering | | |
| Part(s) used for movement | | |

**19.** Ben found organism X growing on a damp, decaying tree trunk. It has no green leaves, no roots, and cannot make its own food. It spreads by producing tiny spores.

a) Name the group organism X belongs to. [1]
b) Give **two** pieces of evidence from the description that support your answer. [2]
c) State one condition of the habitat that helps organism X grow. [1]

**20.** A shop sells two school bags: one made of canvas and one made of plastic. Jia Le needs a bag to carry her wet swimsuit home after swimming lessons. Which bag is more suitable? Explain your answer using the properties of the materials. [4]

---

**— End of Paper —**

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Answers

Answer Key — Science Primary 4 Practice Paper: Diversity (Version 4 of 5)

TuitionGoWhere Practice Paper (AI) — Marking Scheme

Subject: Science | Level: Primary 4 | Topic: Diversity | Total Marks: 60

This AI-generated marking scheme matches the AI-generated practice paper above. Accept any scientifically correct alternative wording.

Section A: Multiple Choice (2 marks each)

Q	Answer	Explanation
1	B	Moss, mushroom and fern are living; the others are non-living.
2	B	Folding leaves show the plant responding to changes around it (touch).
3	B	Penguin, eagle and chicken all have feathers; penguins cannot fly, so A is wrong.
4	B	A toadstool is a fungus; moss and fern are plants, seaweed is an alga.
5	A	Clear glass is transparent (see through) and waterproof (keeps rain out).
6	A	Rubber is flexible and bends comfortably; the others are rigid.
7	C	Plastic is waterproof; paper, wool and cotton absorb water.
8	B	Group X animals live in water; Group Y animals live on land. (C fails: cats and hamsters do not lay eggs.)
9	B	Mould grows fastest where there is warmth and moisture.
10	A	Metal is stronger and harder, so it supports weight without bending.

Section B (4 marks each)

11. (½ mark per item) Group P (living): fern, mushroom, moss, toadstool Group Q (non-living): raincoat, wooden ruler, plastic bottle, glass marble

12. Any three matched pairs, e.g.:

Crawled towards the leaf → responds to changes around it / moves by itself
Ate the leaf → needs food
Grew bigger over the weeks → grows (1 mark per correct pair; 1 mark for overall clarity)

13.

Car tyre — rubber — flexible and hard-wearing
Cooking pot — metal — conducts heat well / strong
Bath towel — cotton/fabric — soft and absorbs water (1 mark per correct row)

14. Any two:

A toadstool cannot make its own food (it has no chlorophyll); plants make their own food using sunlight.
It feeds on dead/decaying matter; plants do not feed on decaying matter.
It has no true roots, stems or leaves. (2 marks per reason)

15. Box W: none of these animals (all boxes must be filled from the list — accept blank/"none") Box X: sparrow Box Y: crocodile Box Z: frog (1 mark each; guppy has scales — if the chart requires all four animals placed, award full credit for sparrow/crocodile/frog correctly placed and note the guppy fits "dry scales" alongside the crocodile.)

Section C (4 marks each)

16. a) Presence of light (sunny vs dark cupboard). [1] b) Any two: same type/size of bread; same amount of water (5 ml); same temperature; sealed bags of the same kind. [2] c) Compare the amount of mould grown on each slice after five days. [1]

17. Plastic is waterproof, so rainwater does not soak through to the body (1–2). Cotton absorbs water, so a cotton raincoat would become wet and heavy and the wearer would get soaked (1–2). Plastic is also light and flexible enough to wear comfortably (1).

18.

Feature	Fish	Bird
Body covering	scales	feathers
Movement	fins and tail (swims)	wings (flies); also two legs for walking

(1 mark per cell)

19. a) Fungus. [1] b) Any two: it cannot make its own food; it grows on decaying matter; it produces spores; it has no green leaves (no chlorophyll). [2] c) Damp/moist conditions (also accept: warmth, presence of decaying material). [1]

20. The plastic bag is more suitable (1). Plastic is waterproof and does not absorb water, so the wet swimsuit will not soak the bag or leak through easily (1–2). Canvas absorbs water, becoming wet and heavy, and takes a long time to dry (1).

Total: 60 marks

Suggested grade bands (AI-suggested, not official): 50+ Excellent, 40–49 Good, 30–39 Fair, below 30 Revise topic again.