UGANDA NATIONAL EXAMINATIONS BOARD

PRIMARY LEAVING EXAMINATIONS

2020
INTEGRATED SCIENCE
Time allowed: 2 hours 15 minutes
Index No. Random No. Personal No.

Candidate’s name : …………………………………………………………………………………

Candidate’s signature : …………………………………………………………………………….
School Random number : …………………………………………………………………………
District No. :
Read the following instructions carefully :
FOR EXAMINER’S
1. Do not write your school or district name USE ONLY
anywhere on this paper. EXR’S
Qn. No. MARKS
2. This paper has two sections: A and B. NO.
Section A has 40 questions and section B has 15 1 - 10
questions. The paper has 15 printed papers
altogether.
11 - 20
3. Answer all questions. All the answers for both 21 - 30
sections A and B must be shown in the spaces
provided. 31 - 40
4. All working must be done using a blue or black 41 - 43
ball point pen or ink. Any work done in pencil will
NOT be marked except drawings and diagrams. 44 - 46
5. Unnecessary changes in your work and 47 - 49
handwriting that cannot easily be read may lead to
loss of marks. 50 - 52
6. Do not fill anything in the table indicated: ”For 53 - 55
examiners’ use only” and the boxes inside the
question paper.
TOTAL

© 2020 Uganda National Examinations Board Turn over

 SECTION A: 40 MARKS

Questions 1 to 40 carry one mark each.

1. Name the type of cloud which is the highest in the sky.

………………………………………………………………………………………………………….
2. State any one way of controlling the spread of ring worm among children.
………………………………………………………………………………………………………….
3. Which type of soil erosion creates deep channels in the ground?
………………………………………………………………………………………………………….
4. Name the component of blood affected by the sickle cell disease.
………………………………………………………………………………………………………….
5. What is the function of the endosperm of a maize grain?
………………………………………………………………………………………………………….
The diagram below shows a change in state of matter. Use it to answer
the questions 6 and 7.

Liquid Z

Freezing

6. What is the state of matter at Z?

………………………………………………………………………………………………………….
7. Name the process by which Z changes back to liquid.
………………………………………………………………………………………………………….
8. Which part of a cow is affected by mastitis disease?
………………………………………………………………………………………………………….
9. State the principle on which a periscope works.
………………………………………………………………………………………………………….

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10. State any one condition that favours the multiplication of bacteria.
…………………………………………………………………………………………………………

11. Give any one example of a non-renewable energy resource.

…………………………………………………………………………………………………………
12. State any one way in which the spread of germs through fingers can be
controlled.
…………………………………………………………………………………………………………
13. Which method of heat transfer does not need any form of matter?
…………………………………………………………………………………………………………
14. State any one characteristic of a worker bee.
…………………………………………………………………………………………………………
The diagram below is of a musical instrument. Use it to answer questions
15 and 16.

15. Name the group of musical instruments to which the instrument above
belongs.
…………………………………………………………………………………………………………
16. How can the pitch of the above instrument be varied?
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………

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17. How are legumes different from other dicotyledonous plants?
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
18. State the method used to find the volume of an irregular object.
…………………………………………………………………………………………………………
19. Give any one way in which a school health club can promote health in their
community.
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
20. State any one advantage of having proper housing for goats.
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………

21. How does the skin cool down the human body temperature on a hot day?
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
22. State any one danger of teenage pregnancy to adolescent girls.
………………………………………………………………………………………………………..
23. Give any one life skill that children need to develop in order to safe guard
themselves against drug dependence.
…………………………………………………………………………………………………………
24. State any one way in which the spread of hookworms can be prevented.
…………………………………………………………………………………………………………

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 The diagram below shows a method of making a temporary magnet.
Study and use it to answer questions 25 and 26.

Bar magnet

A piece of iron P

25. Name the method shown above.

…………………………………………………………………………………………………………
26. What will be the pole at P after magnetization?
…………………………………………………………………………………………………………
27. How does chlorine make water safe for drinking?
…………………………………………………………………………………………………………
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28. Name the type of lens used in a magnifying glass.
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29. Apart from getting food, give any one other way in which rabbits benefit
from plants.
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30. Why are triceps and biceps muscles referred to as voluntary
muscles?
…………………………………………………………………………………………………………
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5 Turn over
31. Apart from using medicine, state one other way of preventing the spread of
coccidiosis in poultry.
…………………………………………………………………………………………………………
32. Give any one characteristic of a bird of prey.
…………………………………………………………………………………………………………
33. How do cockroaches spread diseases to people?
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
The diagram below is of a flower. Use it to answer questions 34 and 35.

34. Name the part labelled T.

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35. Give the function of the part labelled S to a flower before it opens up.
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36. Name the human respiratory disease whose signs are loss of weight,
chronic cough and blood stained sputum.
…………………………………………………………………………………………………………
37. State the digestive disorder which can be prevented when people chew food
properly and eat right amount.
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38. Give one reason why a person who has fainted should be placed in a cool
and open space.
…………………………………………………………………………………………………………
39. Give one harmful effect of polythene bags to soil.
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
40. State the method which can be used to obtain salt that has dissolved in
water.
…………………………………………………………………………………………………………

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 SECTION B: 60 MARKS

Questions 41 to 55 carry four marks each.

41. (a) What form of energy is stored in wood fuel?

…………………………………………………………………………………………………

(b) Name any one form of energy produced when wood burns.

……………………………………………………………………………………………………

(c) State two practices carried out at home to conserve wood fuel.

(i) …………………………………………………………………………………………

(ii) …………………………………………………………………………………………

42. (a) Apart from the vertebral column, give any two other parts of the
Human skeleton used for protection.
(i) ……………………………………………………………………………………
(ii) ……………………………………………………………………………………

(b) Name the part protected by the vertebral column in the human body.

…………………………………………………………………………………………………

(c) Give any one health habit that helps to strengthen the human

body.

………………………………………………………………………………………………….

………………………………………………………………………………………………….

43. (a) Apart from animals, mention two other agents of seed dispersal.
(i) ……………………………………………………………………………………
(ii) ……………………………………………………………………………………

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 (b) State any two characteristics of seeds dispersed by animals.

(i) ……………………………………………………………………………………….
(ii) ……………………………………………………………………………………….

44. A patient was given a packet of drugs labelled with information as shown in
the diagram below. Use it to answer the questions that follow.

Panadol
2×3

(a) What name is given to such information written on a packet of

drugs?
………………………………………………………………………………………………….
(b) Give any one reason why such information is important to
patients.
…………………………………………………………………………………………………
(c) How many times a day is the patient supposed to take the drug?
…………………………………………………………………………………………………
(d) The patient took the drug in the morning, for how many hours
should the patient wait before taking the drug again?
…………………………………………………………………………………………………

9 Turn over
45. (a) State any two effects of heat gain on matter.
(i) ……………………………………………………………………………………
(ii) …………………………………………………………………………………….

(b) Give any two ways in which a blacksmith uses heat

(i) ……………………………………………………………………………………
(ii) …………………………………………………………………………………….
46. The table below shows human body organs, the system to which they
belong and the organ function. Study and complete it correctly.
ORGAN SYSTEM ORGAN FUNCTION

………………………………….
Heart Circulatory ………………………………….

……………………………….. Excretory Formation of urine.

Pancreas ………………………………. Produces pancreatic juice

………………………………..
Epididymis Reproduce ………………………………..

47. (a) Name the group of simple machines to which each of the following
tools belongs,
(i) a ladder ………………………………………………………………………
(ii) a panga ………………………………………………………………………

(b) Give any two ways in which simple machines make work easier.

(i) ………………………………………………………………………………………….
(ii) …………………………………………………………………………………………….
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48. The diagram below shows an experiment about rusting. Use the diagram to
answer the questions that follow.

Oil

Water
Boiled water

Iron nails
Iron nails

A B

(a) In which of the containers will the iron rust after some days?
……………………………………………………………………………………………………
(b) Why would the iron nails in the container you have identified rust?
……………………………………………………………………………………………………
……………………………………………………………………………………………………
(c) Give one reason why oil was poured in container A.
……………………………………………………………………………………………………
……………………………………………………………………………………………………
(d) What would happen to the nails if they were painted before being put
in the containers?
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11 Turn over
49. (a) Name the type of immunity acquired through;
(i) recovery from illness ……………………………………………………
(ii) immunization ……………………………………………………………….

(b) Give any two roles of a family in promoting immunization in their

area.

(i) ……………………………………………………………………………………
……………………………………………………………………………………
(ii) ……………………………………………………………………………………
……………………………………………………………………………………

50. (a) State one way in which cattle farming contributes to the
development of leather industry.
……………………………………………………………………………………………………………
(b) Apart from leather industry, give any one other example of industry
that uses cattle products.
……………………………………………………………………………………………………………
(c) State any two ways in which farmers can improve on the
quality of cattle products.
(i) ………………………………………………………………………………………………
(ii) ……………………………………………………………………………………………….

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51. The diagram below shows the arrangement of permanent teeth in the
lower jaw of a human being. Study the diagram and use it to answer
the questions that follow.
P

(a) Name the type of teeth marked Q.

……………………………………………………………………………………………………
(b) State the function of the types of teeth labelled;
P: ……………………………………………………………………………………………….
Q: ……………………………………………………………………………………………….
(c) Identify any one difference between the structure of the types of teeth
labelled Q and R.
………………………………………………………………………………………………………
………………………………………………………………………………………………………
52. (a) Give any two reasons why farmers first plant some seeds in a
nursery bed.
(i) ………………………………………………………………………………………….
(ii) ………………………………………………………………………………………….

(b) State any two advantages of planting crops in rows.

(i) …………………………………………………………………………………………………
(ii) …………………………………………………………………………………………………

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53. The table below shows classes of vertebrates. Study and use it to answer
the questions that follow.

Vertebrates

Fish Amphibians Q Birds Mammals

(a) Name the class of vertebrates represented by Q.

……………………………………………………………………………………………………
(b) Apart from having backbones, give one characteristic common to;
(i) all fish, amphibians and vertebrates in class Q.
………………………………………………………………………………………..
(ii) birds and mammals.
…………………………………………………………………………………………
(c) State the difference in reproduction between vertebrates in class Q
and the amphibians.
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54. (a) Name the disease which results from the deficiency of vitamin C in
human body.
…………………………………………………………………………………………………………
(b) State any two signs of vitamin C deficiency disease in humans.
(i) ………………………………………………………………………………………………
(ii) ……………………………………………………………………………………………..
(c) Give any one example of food which gives us vitamin C.
…………………………………………………………………………………………………..
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55. The diagram below shows an equipment on a bicycle that is used to
produce electricity. Study and use it to answer the questions that follow.

Bicycle tyre

(a) Name the equipment labelled T.

……………………………………………………………………………………………………
(b) Give the function of the bicycle tyre in producing electricity.
…………………………………………………………………………………………………….
(c) State the energy change that takes place in equipment labelled T
when it is in use.
………………………………………………………………………………………………………
(d) State one way in which the amount of electricity produced by the
equipment labelled T can be increased.
………………………………………………………………………………………………………
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END
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