Page 37 - Praktis GO！SCIENCE 5 预备，起！科学5

Science Year 5 Answers

(iii) A: Low cost and saves money, easy to maintain, (b)
longer life span of the tool, safe to use and suitable Temperature Level of coloured
materials. of water (°C) water
B: Easy to maintain, longer life span of the tool,
safe to use and suitable materials 40 High
3. (a) Inclined plane
(b) Wheel and axle / Lever 60 Higher
(c) (i) Way A
80 Highest
Runway
(c) Soak the lid of strawberry jam bottle in a container with
hot water.
预备，起！科学5, 版权所有·侵权必究
5. (a) P: Dim Q: Bright
(b)
(ii) It is easier to lift loads using an inclined plane with
shorter height because lesser force is needed.

Year-end Assessment
Paper 1 (c) This is because if one bulb is damaged, other bulb will
1. C 2. C 3. A 4. C 5. B still light up.
6. C 7. A 8. D 9. A 10. B 6. (a) North : P South : S
11. D 12. C 13. D 14. C 15. C (b) R
16. A 17. D 18. B 19. B 20. B (c) Direction indicator and season indicator
21. A 22. C 23. C 24. D 25. A 7. (a) X: Dim
26. D 27. D 28. B 29. A 30. B Y: Bright
31. A 32. C 33. B 34. D 35. B (b)
36. B 37. C 38. D 39. A 40. B
Paper 2
1. (a) To investigate the relationship between the type of
animals and the number of eggs.
(b) Turtle does not care for its eggs
(c) Frog / Toad
(d) The number of chickens reduces
2. (a) Has hump to store water and fat (c) Because Y is a parallel series which has more paths for
electrical energy to f ow
(b) To cool the body (d) The other bulbs will not light up / not functioning.
(c) (i) Thick fur
(ii) No. This act will cause the animal to extinct. 8. (a) The Moon does not emit its own light.
3. (a) Paddy (b) (i) New Moon
(b) Bird (ii) Half Moon
(iii) Gibbous Moon
Paddy Snake Eagle (iv) Crescent Moon
(c) Century AD Calendar
Mice
(c) The number of mice reduces because the paddy/food
reduces
4. (a) (i) Coloured water expands when heated with hot
water.
(ii) Temperature of water

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12 Answer Practice Go Science Yr5.indd 8 24/09/2021 5:31 PM