PLE Integrated Science — 2026 Mock 3

2026 · Mock

100

Questions

135

Minutes

This paper has two sections: A and B. Section A has 40 questions (1 mark each); Section B has 15 questions (4 marks each). Answer ALL questions. Calculators are NOT allowed.

Time Remaining 00:00

Question 1 of 100

1 1. Name the disease that is spread to people by the bite of a female Anopheles mosquito.

Marks: 1 points

2 2. Name the small water animal that helps to spread bilharzia.

Marks: 1 points

3 3. State one way of controlling the spread of bilharzia in a community.

Marks: 1 points

4 4. Name the food nutrient that is found in plenty in fish and beans.

Marks: 1 points

5 5. The diagram shows a leaf. Name the part marked A.

Marks: 1 points

6 6. On the leaf above, state one function of the part marked B.

Marks: 1 points

7 7. Name the process by which plants lose water through their leaves.

Marks: 1 points

8 8. Name one leguminous crop grown in Uganda.

Marks: 1 points

9 9. Give one reason why legumes are useful in crop rotation.

Marks: 1 points

10 10. Name the class of food that protects the body against diseases.

Marks: 1 points

11 11. Name the mineral salt needed for the formation of strong bones and teeth.

Marks: 1 points

12 12. Name the type of teeth that are used for grinding food.

Marks: 1 points

13 13. Name the liquid that carries digested food to all parts of the body.

Marks: 1 points

14 14. Name the type of change by which a tadpole develops into an adult frog.

Marks: 1 points

15 15. Name one animal that breathes using gills.

Marks: 1 points

16 16. Name the part of a bird that is used for flying.

Marks: 1 points

17 17. Name the gas that is used up when a candle burns.

Marks: 1 points

18 18. The diagram shows a fish. Name the part marked A.

Marks: 1 points

19 19. On the fish above, state the function of the part marked B.

Marks: 1 points

20 20. Name one method of irrigating crops.

Marks: 1 points

21 21. Name the part of a flower that develops into a seed after fertilisation.

Marks: 1 points

22 22. Name the crop that is grown mainly for making sugar.

Marks: 1 points

23 23. Name the sense organ that is used for hearing.

Marks: 1 points

24 24. Name the part of the alimentary canal where digestion of food is completed.

Marks: 1 points

25 25. Name the organ that removes urea from the blood.

Marks: 1 points

26 26. Name the part of the body that is protected by the skull.

Marks: 1 points

27 27. Name one part of the body that is protected by the ribs.

Marks: 1 points

28 28. Name the group of animals that have a backbone.

Marks: 1 points

29 29. Give one example of an animal that has no backbone.

Marks: 1 points

30 30. Name the young one of a goat.

Marks: 1 points

31 31. Name the part of an insect to which the legs and wings are attached.

Marks: 1 points

32 32. Name one animal that is kept for providing wool.

Marks: 1 points

33 33. Name the simple machine on which a see-saw works.

Marks: 1 points

34 34. Name the type of energy that is stored in food.

Marks: 1 points

35 35. Name the force that opposes motion between two surfaces that rub together.

Marks: 1 points

36 36. State one way of reducing friction in a machine.

Marks: 1 points

37 37. Name the process by which ice changes into water.

Marks: 1 points

38 38. Name the layer of gases that surrounds the earth.

Marks: 1 points

39 39. Give one importance of the sun to living things.

Marks: 1 points

40 40. Name one way of controlling soil erosion on a slope.

Marks: 1 points

41. The diagram below shows a bean seed cut open. Study it and answer the questions that follow.

Study the diagram of a bean seed and answer the questions about it.

41 (a) Name the part marked A.

Marks: 1 points

41. The diagram below shows a bean seed cut open. Study it and answer the questions that follow.

Study the diagram of a bean seed and answer the questions about it.

42 (b) Name the part marked C.

Marks: 1 points

41. The diagram below shows a bean seed cut open. Study it and answer the questions that follow.

Study the diagram of a bean seed and answer the questions about it.

43 (c) State the function of the part marked B (the cotyledon).

Marks: 1 points

41. The diagram below shows a bean seed cut open. Study it and answer the questions that follow.

Study the diagram of a bean seed and answer the questions about it.

44 (d) What does the part marked A (plumule) grow into?

Marks: 1 points

42. The diagram below shows a human kidney. Study it and answer the questions that follow.

Study the diagram of the kidney and answer the questions about it.

45 (a) Name the body system to which the kidney belongs.

Marks: 1 points

42. The diagram below shows a human kidney. Study it and answer the questions that follow.

Study the diagram of the kidney and answer the questions about it.

46 (b) Name the part marked A.

Marks: 1 points

42. The diagram below shows a human kidney. Study it and answer the questions that follow.

Study the diagram of the kidney and answer the questions about it.

47 (c) Name the tube marked C that carries urine from the kidney.

Marks: 1 points

42. The diagram below shows a human kidney. Study it and answer the questions that follow.

Study the diagram of the kidney and answer the questions about it.

48 (d) State one function of the kidney in the body.

Marks: 1 points

43. The diagram below shows the life cycle of a frog. Study it and answer the questions that follow.

Study the stages in the life cycle of a frog and answer the questions about them.

49 (a) Name the stage marked A.

Marks: 1 points

43. The diagram below shows the life cycle of a frog. Study it and answer the questions that follow.

Study the stages in the life cycle of a frog and answer the questions about them.

50 (b) Name the stage marked B.

Marks: 1 points

43. The diagram below shows the life cycle of a frog. Study it and answer the questions that follow.

Study the stages in the life cycle of a frog and answer the questions about them.

51 (c) With which organs does the stage marked B breathe?

Marks: 1 points

43. The diagram below shows the life cycle of a frog. Study it and answer the questions that follow.

Study the stages in the life cycle of a frog and answer the questions about them.

52 (d) Name the type of development shown by the frog.

Marks: 1 points

44. Many children in a certain village were suffering from malaria.

Many children in a certain village were suffering from malaria during the rainy season.

53 (a) Name the insect that spreads malaria.

Marks: 1 points

44. Many children in a certain village were suffering from malaria.

Many children in a certain village were suffering from malaria during the rainy season.

54 (b) State one sign of malaria in a person.

Marks: 1 points

44. Many children in a certain village were suffering from malaria.

Many children in a certain village were suffering from malaria during the rainy season.

55 (c) Give one way of preventing malaria.

Marks: 1 points

44. Many children in a certain village were suffering from malaria.

Many children in a certain village were suffering from malaria during the rainy season.

56 (d) What should a person with malaria do to get better?

Marks: 1 points

45. A pupil looked pale, weak and always tired. The nurse said she had anaemia.

A pupil looked pale, weak and was always tired. The nurse said she was suffering from anaemia.

57 (a) Name the mineral salt whose lack causes anaemia.

Marks: 1 points

45. A pupil looked pale, weak and always tired. The nurse said she had anaemia.

A pupil looked pale, weak and was always tired. The nurse said she was suffering from anaemia.

58 (b) Name one food that is rich in this mineral salt.

Marks: 1 points

45. A pupil looked pale, weak and always tired. The nurse said she had anaemia.

A pupil looked pale, weak and was always tired. The nurse said she was suffering from anaemia.

59 (c) State one other sign of anaemia apart from being pale.

Marks: 1 points

45. A pupil looked pale, weak and always tired. The nurse said she had anaemia.

A pupil looked pale, weak and was always tired. The nurse said she was suffering from anaemia.

60 (d) Name the part of blood that is reduced in a person with anaemia.

Marks: 1 points

46. A farmer planted beans in his garden and later harvested them.

A farmer planted beans (a leguminous crop) in his garden and later harvested them.

61 (a) To which group of crops do beans belong?

Marks: 1 points

46. A farmer planted beans in his garden and later harvested them.

A farmer planted beans (a leguminous crop) in his garden and later harvested them.

62 (b) State how beans improve the fertility of the soil.

Marks: 1 points

46. A farmer planted beans in his garden and later harvested them.

A farmer planted beans (a leguminous crop) in his garden and later harvested them.

63 (c) Name one pest that attacks beans in the garden.

Marks: 1 points

46. A farmer planted beans in his garden and later harvested them.

A farmer planted beans (a leguminous crop) in his garden and later harvested them.

64 (d) State one way of storing dry beans safely.

Marks: 1 points

47. Mr. Opio dug a pond on his farm and kept fish in it.

Mr. Opio dug a pond on his farm and kept fish in it (fish farming).

65 (a) What name is given to the keeping of fish in ponds?

Marks: 1 points

47. Mr. Opio dug a pond on his farm and kept fish in it.

Mr. Opio dug a pond on his farm and kept fish in it (fish farming).

66 (b) Name one type of food that can be given to the fish.

Marks: 1 points

47. Mr. Opio dug a pond on his farm and kept fish in it.

Mr. Opio dug a pond on his farm and kept fish in it (fish farming).

67 (c) Give one product that Mr. Opio gets from the fish.

Marks: 1 points

47. Mr. Opio dug a pond on his farm and kept fish in it.

Mr. Opio dug a pond on his farm and kept fish in it (fish farming).

68 (d) Name one enemy that can eat the fish in the pond.

Marks: 1 points

48. The diagram below shows a whole plant. Study it and answer the questions that follow.

Study the diagram of the flowering plant and answer the questions about it.

69 (a) Name the part marked A.

Marks: 1 points

48. The diagram below shows a whole plant. Study it and answer the questions that follow.

Study the diagram of the flowering plant and answer the questions about it.

70 (b) Name the part marked B.

Marks: 1 points

48. The diagram below shows a whole plant. Study it and answer the questions that follow.

Study the diagram of the flowering plant and answer the questions about it.

71 (c) State the function of the part marked B.

Marks: 1 points

48. The diagram below shows a whole plant. Study it and answer the questions that follow.

Study the diagram of the flowering plant and answer the questions about it.

72 (d) State one function of the roots (marked C).

Marks: 1 points

49. During a nature walk, pupils saw frogs and tadpoles near a pond.

During a nature walk, pupils saw frogs near a pond and tadpoles swimming in the water.

73 (a) Where do frogs lay their eggs?

Marks: 1 points

49. During a nature walk, pupils saw frogs and tadpoles near a pond.

During a nature walk, pupils saw frogs near a pond and tadpoles swimming in the water.

74 (b) How do young tadpoles breathe?

Marks: 1 points

49. During a nature walk, pupils saw frogs and tadpoles near a pond.

During a nature walk, pupils saw frogs near a pond and tadpoles swimming in the water.

75 (c) How does an adult frog breathe?

Marks: 1 points

49. During a nature walk, pupils saw frogs and tadpoles near a pond.

During a nature walk, pupils saw frogs near a pond and tadpoles swimming in the water.

76 (d) Give one importance of frogs in the environment.

Marks: 1 points

50. The people of a village fell sick after drinking water from a dirty stream.

The people of a village fell sick after drinking water collected from a dirty stream.

77 (a) Name one disease that can be got from drinking dirty water.

Marks: 1 points

50. The people of a village fell sick after drinking water from a dirty stream.

The people of a village fell sick after drinking water collected from a dirty stream.

78 (b) State one way of making the water safe for drinking.

Marks: 1 points

50. The people of a village fell sick after drinking water from a dirty stream.

The people of a village fell sick after drinking water collected from a dirty stream.

79 (c) Where should human waste be disposed of to keep water clean?

Marks: 1 points

50. The people of a village fell sick after drinking water from a dirty stream.

The people of a village fell sick after drinking water collected from a dirty stream.

80 (d) Why should people wash their hands after visiting the latrine?

Marks: 1 points

51. The diagram below shows a machine used to lift a load. Study it and answer the questions that follow.

Study the diagram of the machine and answer the questions about it.

81 (a) Name the machine marked A.

Marks: 1 points

51. The diagram below shows a machine used to lift a load. Study it and answer the questions that follow.

Study the diagram of the machine and answer the questions about it.

82 (b) What type of pulley is shown in the diagram?

Marks: 1 points

51. The diagram below shows a machine used to lift a load. Study it and answer the questions that follow.

Study the diagram of the machine and answer the questions about it.

83 (c) If the load B is 50 N, how much effort C is needed to lift it? (A single fixed pulley has a mechanical advantage of 1.)

Marks: 1 points

51. The diagram below shows a machine used to lift a load. Study it and answer the questions that follow.

Study the diagram of the machine and answer the questions about it.

84 (d) State one advantage of using this machine.

Marks: 1 points

52. The diagram below shows a person's forearm lifting a load. Study it and answer the questions that follow.

The diagram shows a human forearm being used as a lever to lift a load in the hand.

85 (a) Name the class (order) of lever shown by the forearm.

Marks: 1 points

52. The diagram below shows a person's forearm lifting a load. Study it and answer the questions that follow.

The diagram shows a human forearm being used as a lever to lift a load in the hand.

86 (b) Give one other example of a third class lever.

Marks: 1 points

52. The diagram below shows a person's forearm lifting a load. Study it and answer the questions that follow.

The diagram shows a human forearm being used as a lever to lift a load in the hand.

87 (c) In a third class lever, which is larger, the effort or the load?

Marks: 1 points

52. The diagram below shows a person's forearm lifting a load. Study it and answer the questions that follow.

The diagram shows a human forearm being used as a lever to lift a load in the hand.

88 (d) Name the part marked A (the point about which the lever turns).

Marks: 1 points

53. Pupils pushed a heavy box along the floor and noticed it was hard to move.

Pupils pushed a heavy box along the floor and noticed that it was hard to move because of friction.

89 (a) What is friction?

Marks: 1 points

53. Pupils pushed a heavy box along the floor and noticed it was hard to move.

Pupils pushed a heavy box along the floor and noticed that it was hard to move because of friction.

90 (b) State one effect of friction.

Marks: 1 points

53. Pupils pushed a heavy box along the floor and noticed it was hard to move.

Pupils pushed a heavy box along the floor and noticed that it was hard to move because of friction.

91 (c) State one way of reducing friction.

Marks: 1 points

53. Pupils pushed a heavy box along the floor and noticed it was hard to move.

Pupils pushed a heavy box along the floor and noticed that it was hard to move because of friction.

92 (d) Give one way in which friction is useful to us.

Marks: 1 points

54. The people of a hilly village cut down many trees and later the soil was washed away.

The people of a hilly village cut down many trees, and during the rains the soil was washed away.

93 (a) What name is given to the planting of trees?

Marks: 1 points

54. The people of a hilly village cut down many trees and later the soil was washed away.

The people of a hilly village cut down many trees, and during the rains the soil was washed away.

94 (b) Give one importance of trees in the environment.

Marks: 1 points

54. The people of a hilly village cut down many trees and later the soil was washed away.

The people of a hilly village cut down many trees, and during the rains the soil was washed away.

95 (c) Name the process by which soil is washed away by running water.

Marks: 1 points

54. The people of a hilly village cut down many trees and later the soil was washed away.

The people of a hilly village cut down many trees, and during the rains the soil was washed away.

96 (d) State one method the villagers can use to control soil erosion.

Marks: 1 points

55. The diagram below shows a food chain in a garden. Study it and answer the questions that follow.

Study the food chain shown in the diagram and answer the questions about it.

97 (a) Name the producer in the food chain.

Marks: 1 points

55. The diagram below shows a food chain in a garden. Study it and answer the questions that follow.

Study the food chain shown in the diagram and answer the questions about it.

98 (b) Name the first (primary) consumer in the food chain.

Marks: 1 points

55. The diagram below shows a food chain in a garden. Study it and answer the questions that follow.

Study the food chain shown in the diagram and answer the questions about it.

99 (c) Name the animal that feeds on the frog.

Marks: 1 points

55. The diagram below shows a food chain in a garden. Study it and answer the questions that follow.

Study the food chain shown in the diagram and answer the questions about it.

100 (d) What would happen to the number of grasshoppers if all the frogs died?

Marks: 1 points