From Real Exams Exam Paper
Primary 4 Science Semestral Assessment 2 (End of Year) Paper 2
Free P4 Science SA2 Paper 2, 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
Free quiz and exam paper access
Enter your details to view this paper
Your access is remembered on this device.
Answers
TuitionGoWhere Exam Practice (AI) — SA2 Practice Paper Answer Key (Version 2)
Subject: Science
Level: Primary 4
Paper: SA2 Practice Paper
Total Marks: 60
Section A (10 marks)
1. B — A flowering plant is a living thing. (Teaching note: Living things are plants, animals, fungi etc. Wood, plastic, stone are non-living.)
2. C — Made of metal is not a characteristic of living things. (Teaching note: Living things need food, can move, reproduce; metal is a material, not a life property.)
3. C — Fungus. (Teaching note: Mushrooms are fungi, a separate group from plants and animals.)
4. B — Non-flowering plants. (Teaching note: Ferns do not produce flowers or seeds; they reproduce by spores.)
5. C — Fish. (Teaching note: Vertebrates have backbones; fish, birds, mammals, reptiles, amphibians are vertebrates.)
6. B — Have feathers and lay eggs. (Teaching note: Birds share feathers and egg-laying; not all live in water or have scales.)
7. A — Cotton shirt. (Teaching note: Cotton comes from cotton plant, once living, now processed into non-living object.)
8. C — Smell. (Teaching note: Grouping by odour uses the smell sense.)
9. B — Reptiles. (Teaching note: Lizard and snake are cold-blooded, scaly, backbone animals = reptiles.)
10. B — To study their similarities and differences. (Teaching note: Classification helps science organise diversity.)
Section B (8 marks)
11. [2 marks] Any two: needs food, reproduces, grows, responds to surroundings, made of cells.
(Marking: 1 mark each correct characteristic.)
12. [2 marks] Example: Flowering plants produce flowers and seeds; non-flowering plants do not.
(Marking: 1 mark for stating flower/seeds difference, 1 mark for correct comparison.)
13. [2 marks] Invertebrate group: insect / worm / mollusc etc. Example: butterfly / earthworm / snail.
(Marking: 1 mark group, 1 mark example.)
14. [2 marks] A bicycle does not need food, does not grow, does not reproduce, is not made of cells.
(Marking: 1 mark stating it is non-living, 1 mark giving valid reason.)
Section C (12 marks)
15.
(a) [1] Group X.
(b) [1] They are living things (cat, dog, bird are animals).
16. (Based on placeholder Q16-fig1)
(a) [1] Rose / frog / human (any one).
(b) [1] Toy car / brick / balloon (any one).
(c) [1] They are living (need food, grow, reproduce).
17.
(a) [1] Vertebrates.
(b) [1] Earthworm / insect / snail (any invertebrate).
(c) [1] Helps us study animals with/without backbone separately.
Section D (16 marks)
18.
(a) [1] Dead log.
(b) [1] Butterfly.
(c) [2] Glass bottle is non-living because it does not need food, does not grow, does not reproduce, not made of cells. (1 mark non-living, 1 mark reason.)
19. (Based on placeholder Q19-fig1)
(a) [1] Needs water / grows and develops / made of cells.
(b) [1] Does not reproduce.
(c) [2] Grouping by features shows how living and non-living things are different and helps us see diversity. (1 mark link to features, 1 mark link to diversity.)
20.
(a) [1] Any living: e.g., student, spider plant.
(b) [1] Any non-living: e.g., book, pencil.
(c) [2] Group by material (plastic vs metal); by use (writing vs drinking). (1 mark each grouping.)
(d) [2] To understand our environment and care for living things. (1 mark understanding, 1 mark responsibility.)
Total marks awarded across sections = 10 + 8 + 12 + 16 = 60. Matches paper total.