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Primary 4 Science Practice Paper 5
Free P4 Science Practice Paper 5, HY3 AI version, with questions, answers, and syllabus-aligned practice for Singapore students.
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Answers
TuitionGoWhere Practice Paper Answer Key — Science Primary 4 (Version 5)
Topic: Diversity
Total Marks: 40
Section A (10 marks)
- B (mosquito) — A mosquito is an insect and is alive. [1]
- A (non-flowering plant) — Ferns do not produce flowers or seeds in fruits. [1]
- C (fish) — Fish use gills to take in oxygen from water. [1]
- A (cotton shirt) — Cotton comes from the cotton plant (living), but the shirt is non-living. [1]
- B (can move by itself) — Movement is a sign of life, though not all living things move obviously. [1]
- B (dolphin) — Dolphins are mammals; they breathe air and feed milk to young. [1]
- A (flowering plants) — They have flowers and make fruits with seeds. [1]
- C (made of plastic) — Plastic is non-living material, not a trait of living things. [1]
- C (fungus) — Mushrooms are fungi, not plants or animals. [1]
- B (living: bacteria, rose / non-living: book) — Correct grouping by life status. [1]
Section B (12 marks)
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Difference: Flowering plants produce flowers and seeds in fruits; non-flowering plants do not. [2]
Teaching note: P4 Diversity focuses on grouping plants by presence of flowers. -
Examples: Dog, fish (or any two vertebrates like cat, bird). [2]
Marking: 1 mark each correct example. -
Explanation: The leaf is non-living because it no longer carries out life processes such as growing or responding; it came from a living plant but is now dead. [2]
-
Characteristic: Both need food / can reproduce / respond to surroundings (any one). [2]
-
Classification: Living: spider, mango tree. Non-living: cloud, bicycle. [2]
Note: Cloud is non-living natural object. -
Reason: Bacteria are living because they are made of cells, reproduce, and respond to environment, even if tiny. [2]
Section C (8 marks)
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(a) Living: cat, rose plant, goldfish. [1]
(b) Non-living: notebook, sand. [1] -
(a) Living things in diagram: hen, tulip, worm (any two). [1]
(b) Non-living thing: brick / balloon / spoon (any one). [1]
Image check: Diagram must show two columns with listed items. -
(a) No. [1]
(b) Example: A car moves but is non-living. [1] -
Butterfly: Living [1 for 2 correct]
Pencil: Non-living
Mushroom: Living
Table image must show these three objects; answer verifies classification.
Total: 10 + 12 + 8 = 40 marks. ✅