Answers (Science Mock Exam Paper 3)

Answers:

1. 4
2. 2
3. 1
4. 3
5. 4
6. 2
7. 3
8. 2
9. 1
10. 2
11. 4
12. 4
13. 3
14. 3
15. 2
16. 3
17. 3
18. 1
19. 1
20. 2
21. 3
22. 4
23. 3
24. 1
25. 3
26. 3
27. 4
28. 4
29. 2
30. 4

31. I will go through this question in class.

32.a) chlorophyll
32.b) X - plant cells without chloroplasts
Y - plant cells with chloroplasts
Z - non-plant cells / no cells / dead cells / animal cells

33. a) Father : F2
Mother : M1
33. b) The bodies of males are more slender than the females. OR The males have 2 fins on the
underside of their bodies.

34.a) It is a plant that does not bear flowers but grow from spores.
34.b) coconut / lotus / nipah / mangrove
34.c) D

35. Circle the fishing rod, well, tap and spanner

36.a) W - anti-clockwise
X - clockwise
Y - anti-clockwise
Z - anti-clockwise
36.b) change the direction of movement/force OR change speed of movement/force

37.a) C
37.b) 200g to 220 g slightly more than 200g
37.c) Distance moved by effort is the same as distance moved by load

38.a) 12 cm
38.b) 3 cm
38.c) The greater the weight being added, the greater the extension of the spring OR
With every 40g weight added, the spring increases its extension by 2cm

39. Step 1: Compress the spring
Step 2: Place the toy car in front of the handle A / spring
Step 3: -
Step 4: Measure the distance moved by the toy car

40.a) P
40.b) Q

41. I will go through this question in class.

42. I will go through this question in class.

43.a) A and B
43.b) A and D
43.c) Put more batteries

44. Step 1: Take a deep breath and blow into the rubber tube
Step 2: Look at the markings of the bottle and find out the volume of air is in the bottle.
Step 3: -

45.a) The fishes will die.
45.b) The oil prevents oxygen from dissolving in the water.

46.a) I will go through this question in class.
46.b) in the dark/at night/no light/no sunlight