PAPER CODE: 532/1
MOCK REF: PLE-380738
Uganda National Examinations Board
Primary Leaving Examination (Standard Science Mock)
INTEGRATED SCIENCE
TIME: 2h 15m
MARKS: 100
★ CANDIDATE QUESTION PAPER ★
Instructions to Candidates:
- This paper consists of two sections: Section A and Section B.
- Section A has 40 questions (40 marks). Section B has 15 questions (60 marks).
- Answer all questions in both sections. All answers must be written in the spaces provided on this question paper.
- All answers must be written in blue or black ballpoint pen. Diagrams should be drawn in pencil.
- Unnecessary crossing of work and illegible handwriting may lead to loss of marks.
Section A: (Questions 1 to 40) — 40 Marks
1 Mark eachQuestion 1 to 40 carry one mark each. Answer all questions in the spaces provided.
1.
State the scientific function of the screen on top of the vent pipe of a VIP latrine. [1 mark]
P.6 • Sanitation
2.
Why is a husband and his wife advised to go for treatment together when they contract gonorrhoea? [1 mark]
P.6 • The Reproductive System
3.
Give any one psychological life skill that adolescent girls can develop to safeguard themselves against early teenage pregnancies. [1 mark]
P.6 • The Reproductive System
4.
State any two ways in which washing clothes is important to human health. [1 mark]
P.6 • Science at Home and in Our Community
5.
Name any one living thing that undergoes moulting in the environment. [1 mark]
P.5 • Types of Changes in the Environment
6.
What is meant by non-renewable energy resources? [1 mark]
P.7 • Energy Resources in the Environment
7.
Name the parasitic disease that affects the ears of domestic rabbits. [1 mark]
P.5 • Keeping Rabbits
8.
State one way of preventing the spread of Tuberculosis (TB). [1 mark]
P.7 • The Respiratory System
9.
Why does sound travel fastest in solids compared to liquids and gases? [1 mark]
P.6 • Sound Energy
10.
State any one method used to identify individual livestock on a farm. [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
11.
Give any one reason why a residential living house should have large windows on opposite walls. [1 mark]
P.5 • Primary Health Care (PHC)
12.
State any one danger of cigarette smoking to the human respiratory system. [1 mark]
P.7 • The Respiratory System
13.
Why is an insect compelled to shed its outer covering periodically during growth? [1 mark]
P.7 • The Muscular and Skeletal System
14.
Why is water obtained by the distillation method not recommended for drinking at home? [1 mark]
P.6 • Science at Home and in Our Community
15.
How is tepid sponging useful to a casualty with high fever? [1 mark]
P.6 • Accidents and First Aid
16.
Name two methods of obtaining clean water for washing at home. [1 mark]
P.6 • Science at Home and in Our Community
17.
State one way in which school children can help their community control the spread of malaria. [1 mark]
P.5 • Control of Malaria
18.
Name any one element of Primary Health Care (PHC). [1 mark]
P.5 • Primary Health Care (PHC)
19.
Give one safety measure to prevent electric shock in a domestic home. [1 mark]
P.6 • Accidents and First Aid
20.
Which part of the human body is affected by Otalgia? [1 mark]
P.6 • Sound Energy
21.
Which part of a mammalian tooth contains blood vessels and nerves? [1 mark]
P.4 • The Teeth
22.
Name the bud found in the leaf axil of a flowering plant. [1 mark]
P.4 • Plant Life
23.
What is the color code of the earth wire in a modern standard three-pin plug? [1 mark]
P.7 • Electricity
24.
Why is wood ash regularly poured into the pit of a latrine or Ecosan toilet? [1 mark]
P.6 • Sanitation
25.
Why is a pregnant mother advised to eat plenty of food rich in iron? [1 mark]
P.5 • Food and Nutrition
26.
State one way of increasing the electrical current produced by a bicycle dynamo. [1 mark]
P.7 • Electricity
27.
Give one road safety practice for pedestrians crossing a busy road. [1 mark]
P.6 • Accidents and First Aid
28.
How is the function of the anthers in a flower similar to that of the testes in a human male? [1 mark]
P.6 • The Reproductive System
29.
State the minimum distance a pit latrine should be dug away from a domestic spring well or borehole. [1 mark]
P.5 • Primary Health Care (PHC)
30.
Give any one example of an emotional change in adolescents. [1 mark]
P.6 • The Reproductive System
31.
How is a burn different from a scald? [1 mark]
P.6 • Accidents and First Aid
32.
What scientific term describes the direct change of a solid into a gas without melting into a liquid? [1 mark]
P.5 • Types of Changes in the Environment
33.
Why is an electric fuse constructed using a wire with a low melting point? [1 mark]
P.7 • Electricity
34.
Give any one example of a dual-purpose or heavy poultry breed. [1 mark]
P.5 • Keeping Poultry and Bees
35.
State one way in which food can get contaminated with disease-causing germs in a home. [1 mark]
P.5 • Food and Nutrition
36.
Mention any one personal hygiene practice that prevents bad body odour. [1 mark]
P.6 • Personal Hygiene
37.
Name any one vital organ protected by the human rib cage. [1 mark]
P.7 • The Muscular and Skeletal System
38.
Name the type of optical lens that diverges light rays. [1 mark]
P.7 • Light Energy
39.
State any one primary sex characteristic in human females. [1 mark]
P.6 • The Reproductive System
40.
State any one advantage of castrating male piglets not intended for breeding. [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
Section B: (Questions 41 to 55) — 60 Marks
4 Marks eachQuestion 41 to 55 carry four marks each. All answers must be written in the spaces provided.
41.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Food and Nutrition
Weaning is an important milestone in infant growth:
(a) Define the term weaning. (1 mark)
(b) At what age should weaning start? (1 mark)
(c) Why should weaning NOT start earlier than this recommended age? (1 mark)
(d) State one danger of feeding a weaning child on plain maize porridge without enriching it. (1 mark)
42.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • The Reproductive System
(a) State the difference between identical twins and fraternal twins in terms of fertilization.
(b) State any two physical characteristics unique to identical twins.
43.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Food and Nutrition
(a) What is colostrum? (1 mark)
(b) State two benefits of colostrum to a newborn infant. (2 marks)
(c) Name the condition that results from a severe lack of Iodine in the diet. (1 mark)
44.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Accidents and First Aid
(a) State any two common causes of nose bleeding (epistaxis) in children. (2 marks)
(b) State two First Aid measures given to manage a nose bleeding casualty. (2 marks)
45.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Accidents and First Aid
(a) Name the kind of water recommended to be used when tepid sponging a casualty of high fever.
(b) State the scientific reason why the water mentioned in (a) is used instead of very cold water.
(c) Mention any two signs of dysentery in humans.
46.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • The Muscular and Skeletal System
(a) Name the five regions of the human vertebral column in order from neck to tail.
(b) Give the number of vertebrae in: (i) Cervical region (ii) Lumbar region
(c) State the function of the human vertebral column.
47.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Sanitation
(a) Give the meaning of each of the following terms:
(i) Sanitation (1 mark)
(ii) Personal hygiene (1 mark)
(b) State any two human activities done to maintain proper sanitation in a school compound. (2 marks)
48.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Keeping Goats, Sheep, and Pigs
Livestock breeds have different commercial adaptations:
(a) Name the exotic goat breed kept primarily for high milk production. (1 mark)
(b) Which sheep breed is world-famous for producing fine wool? (1 mark)
(c) Give any two reasons why local indigenous goats like the Small East African goat are preferred by subsistence farmers. (2 marks)
49.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • Simple Machines
(a) Name the simple machine used in a windlass (water winch) for drawing water from deep wells. (1 mark)
(b) State two other practical uses of the machine named in (a). (2 marks)
(c) Name the opposing force that resists motion in simple machines. (1 mark)
50.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Classification of Animals
(a) State the name of insects that live and work together.
(b) Give any one way in which insects are useful to people.
(c) State any two human activities that are dangerous to insects in the environment.
51.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • Forestry and Agroforestry
(a) Define the term agroforestry. (1 mark)
(b) State any one characteristic of suitable tree species used in agroforestry. (1 mark)
(c) Give any two benefits of agroforestry to a farmer. (2 marks)
52.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • The Reproductive System
(a) Name the male sex hormone responsible for secondary sex changes during puberty.
(b) Mention two secondary physical changes that occur only in boys during puberty.
(c) Name any one secondary physical change that is common to both boys and girls during puberty.
53.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Keeping Poultry and Bees
(a) Name any two local mineral supplements fed to laying hens to promote the formation of strong eggshells. (2 marks)
(b) State any two management practices carried out by a poultry farmer to maintain high egg production in layers. (2 marks)
54.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • The Muscular and Skeletal System
(a) What is a fracture?
(b) Distinguish between a simple fracture and a compound fracture.
(c) Give the main function of each of the following first aid items:
(i) Splints
(ii) Arm sling
55.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Primary Health Care (PHC)
The diagram below shows a sanitary homestead structure:
(a) Name the structure described as a raised wooden rack used for drying utensils. (1 mark)
(b) Give two reasons why washed plates should be dried on this structure rather than on the ground. (2 marks)
(c) How does direct sunlight assist in the sanitation of utensils on this rack? (1 mark)
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