PAPER CODE: 532/1
MOCK REF: PLE-110941
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 one way of preventing the spread of Tuberculosis (TB). [1 mark]
P.7 • The Respiratory System
2.
Name the part of an insect used for balancing during flight. [1 mark]
P.6 • Classification of Animals
3.
Name any one vital organ protected by the human rib cage. [1 mark]
P.7 • The Muscular and Skeletal System
4.
What is meant by the term annual crops? [1 mark]
P.5 • Crop Growing
5.
Give any one role of water during seed germination. [1 mark]
P.5 • Plant Life
6.
Give any two examples of root tuber crops. [1 mark]
P.5 • Crop Growing
7.
Name the bud found in the leaf axil of a flowering plant. [1 mark]
P.4 • Plant Life
8.
Give the scientific meaning of the term skeleton. [1 mark]
P.7 • The Muscular and Skeletal System
9.
Give one reason why food should be chewed properly before swallowing. [1 mark]
P.5 • The Digestive System
10.
During which type of weather does water evaporate fastest from open surfaces? [1 mark]
P.4 • Weather Changes Around Us
11.
Name two methods of obtaining clean water for washing at home. [1 mark]
P.6 • Science at Home and in Our Community
12.
Mention one way in which you can prevent some clothes from staining others during washing. [1 mark]
P.6 • Science at Home and in Our Community
13.
What general term refers to cattle kept primarily for ploughing and pulling carts? [1 mark]
P.6 • Keeping Cattle
14.
What kind of water is recommended for use during tepid sponging, and why should very cold water be avoided? [1 mark]
P.6 • Accidents and First Aid
15.
What is Primary Health Care (PHC)? [1 mark]
P.5 • Primary Health Care (PHC)
16.
The diagram below shows an animal in the group of invertebrates. (Snail diagram) Name the animal shown. [1 mark]
P.6 • Classification of Animals
17.
Mention any one personal hygiene practice that prevents bad body odour. [1 mark]
P.6 • Personal Hygiene
18.
Why is the drop hole of a VIP latrine left open without a lid at all times? [1 mark]
P.6 • Sanitation
19.
Give any one reason why veterinary doctors advise farmers NEVER to open the carcass of an animal suspected to have died of Anthrax. [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
20.
Why is the floor of a modern pigsty built with a gentle slope towards the drainage channel? [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
21.
Why is an electric fuse constructed using a wire with a low melting point? [1 mark]
P.7 • Electricity
22.
Why does the water level in a measuring cylinder rise when a stone is completely immersed in it? [1 mark]
P.5 • Matter and Energy
23.
Name any one living thing that undergoes moulting in the environment. [1 mark]
P.5 • Types of Changes in the Environment
24.
State the function of the U-trap in a water closet (flush toilet). [1 mark]
P.6 • Sanitation
25.
State the structural adaptation of incisor teeth to their function. [1 mark]
P.4 • The Teeth
26.
Give a reason why a hard object (wrapped in a clean cloth) should be put in the mouth of a convulsing victim. [1 mark]
P.6 • Accidents and First Aid
27.
State one way of preventing athlete's foot infection. [1 mark]
P.6 • Personal Hygiene
28.
What term refers to the meat obtained from an adult sheep? [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
29.
Give any two examples of water impurities. [1 mark]
P.6 • Science at Home and in Our Community
30.
State any one way in which the ironing of clothes is useful when cleaning clothes. [1 mark]
P.6 • Science at Home and in Our Community
31.
Why is it dangerous to pour highly acidic substances or strong chemical insecticides into a pit latrine? [1 mark]
P.6 • Sanitation
32.
Give one way of controlling the breeding of houseflies in a homestead. [1 mark]
P.6 • Sanitation
33.
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
34.
What is meant by the term balanced diet? [1 mark]
P.5 • Food and Nutrition
35.
Give any one agricultural use of discarded plastic jerrycans or containers in a home. [1 mark]
P.6 • Science at Home and in Our Community
36.
Name the type of optical lens that diverges light rays. [1 mark]
P.7 • Light Energy
37.
Name the movable joint found between the atlas and axis vertebrae in the neck. [1 mark]
P.7 • The Muscular and Skeletal System
38.
State one personal hygiene activity done using a nail cutter or razor blade. [1 mark]
P.4 • Personal Hygiene
39.
Give one reason why a person who has fainted should be placed in a cool, open, and well-ventilated space. [1 mark]
P.6 • Accidents and First Aid
40.
State one benefit of warming-up exercises to muscles before strenuous physical activities. [1 mark]
P.7 • The Muscular and Skeletal System
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.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)
42.
Structured & Practical Assessment Item
[4 MARKS]
P.4 • Vectors and Diseases
(a) Name the insect vector that spreads Sleeping Sickness (Trypanosomiasis) to humans. (1 mark)
(b) Which developmental stage of a housefly causes food contamination? (1 mark)
(c) What do adult female tsetse flies and female anopheles mosquitoes feed on? (1 mark)
(d) How does an infected mosquito transmit malaria parasites to humans? (1 mark)
43.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Types of Changes in the Environment
Classify each of the following changes taking place in the environment as either a physical, chemical, or biological change:
(a) Burning dry wood into ash (1 mark)
(b) Melting of ice into water (1 mark)
(c) Growth of a puppy into an adult dog (1 mark)
(d) Evaporation of water into steam (1 mark)
44.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Crop Growing
(a) State any one danger of weeds to growing crops. (1 mark)
(b) Give any two cultural methods of controlling weeds in a garden. (2 marks)
(c) State one routine management practice carried out on climbing crops like tomatoes. (1 mark)
45.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • Forestry and Agroforestry
(a) State any two factors to consider when choosing a site for establishing a school woodlot. (2 marks)
(b) Give any two economic benefits of a school woodlot to the community. (2 marks)
46.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • The Muscular and Skeletal System
(a) Name the two voluntary muscles found in the human upper arm.
(b) Give any one function of muscles in the human body.
(c) State any one importance of maintaining correct body posture in humans.
47.
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)
48.
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.
49.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • The Muscular and Skeletal System
(a) Mention two connective tissues found at a movable joint in the human skeleton.
(b) State the difference in function between a tendon and a ligament.
(c) State any two ways in which friction is reduced at a movable joint.
50.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Science at Home and in Our Community
(a) What is meant by the term silting?
(b) State the major cause of silting in water bodies.
(c) Apart from killing fish, give one way in which silting affects aquatic life.
51.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Sanitation
(a) Outline the three correct scientific steps followed when preparing Oral Rehydration Solution (ORS) locally at home. (3 marks)
(b) State the importance of administering ORS to a child suffering from severe diarrhoea. (1 mark)
52.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Classification of Animals
(a) State any two general characteristics of amphibians. (2 marks)
(b) Give two differences between fish and adult amphibians. (2 marks)
53.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Science at Home and in Our Community
The diagram below shows a simple water purification system. Study and use it to answer the questions that follow:
Swampy water ──► Filtered ──► Point W ──► Stored in the jerrycan
(a) Name any one activity that can be done to water at Point W.
(b) Why is swampy water filtered before being taken to Point W?
(c) State the importance of passing water through Point W.
(d) Mention any one other activity that can be done to swampy water before being taken to Point W to make it clear.
54.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Food and Nutrition
Vulnerable groups have special dietary requirements:
(a) Why is a convalescent person classified as a vulnerable individual? (1 mark)
(b) Which class of food should be increased in a convalescent's diet? (1 mark)
(c) State the nutritional role of dietary roughage in human digestion. (1 mark)
(d) Name any one local food source rich in dietary roughage. (1 mark)
55.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Science at Home and in Our Community
(a) Give the meaning of the term siltation (silting).
(b) Identify the major cause of siltation.
(c) State any two effects of siltation in water bodies.
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