PAPER CODE: 532/1
MOCK REF: PLE-402521
Uganda National Examinations Board
Primary Leaving Examination (Standard Science Mock)
INTEGRATED SCIENCE
TIME: 2h 15m
MARKS: 40
★ 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 0 questions (0 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 any one importance of evaporation in the environment or daily life. [1 mark]
P.5 • Heat Energy
2.
How can a person doing laundry prevent colored clothes from staining white clothes? [1 mark]
P.6 • Science at Home and in Our Community
3.
Why is it not advisable to burst blisters on a burnt part of the skin? [1 mark]
P.6 • Accidents and First Aid
4.
Give one effect of thick clouds in the atmosphere. [1 mark]
P.4 • Weather Changes Around Us
5.
Give any two examples of water impurities. [1 mark]
P.6 • Science at Home and in Our Community
6.
Mention any one personal hygiene practice that prevents bad body odour. [1 mark]
P.6 • Personal Hygiene
7.
What happens when cooking oil is poured onto water in a glass? [1 mark]
P.5 • Matter and Energy
8.
State one characteristic of essential drugs in Primary Health Care. [1 mark]
P.5 • Primary Health Care (PHC)
9.
What is meant by the term balanced diet? [1 mark]
P.5 • Food and Nutrition
10.
Why is an electric fuse constructed using a wire with a low melting point? [1 mark]
P.7 • Electricity
11.
State one way of preventing accidental drug poisoning in young children at home. [1 mark]
P.6 • Accidents and First Aid
12.
Why is the burning of dry paper classified as a chemical change? [1 mark]
P.5 • Types of Changes in the Environment
13.
Give any one reason why a residential living house should have large windows on opposite walls. [1 mark]
P.5 • Primary Health Care (PHC)
14.
State the function of hairs (cilia) and mucus inside the human nostrils. [1 mark]
P.7 • The Respiratory System
15.
State the exact part of the female reproductive system where fertilization takes place. [1 mark]
P.6 • The Reproductive System
16.
What term refers to the meat obtained from an adult sheep? [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
17.
State one way PIASCY messages help primary school pupils prevent HIV/AIDS infection. [1 mark]
P.6 • The Reproductive System
18.
Give any one example of a dual-purpose or heavy poultry breed. [1 mark]
P.5 • Keeping Poultry and Bees
19.
State the function of the U-trap in a water closet (flush toilet). [1 mark]
P.6 • Sanitation
20.
In a food web, how do carnivorous animals obtain their energy? [1 mark]
P.6 • Environment and Food Chains
21.
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
22.
Why are small gaps left between railway rails during track construction? [1 mark]
P.5 • Heat Energy
23.
Why are goats ear tagged or ear notched on a livestock farm? [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
24.
State the scientific function of the screen (wire mesh) on top of the vent pipe of a VIP latrine. [1 mark]
P.6 • Sanitation
25.
State one reason why a torch may fail to produce light even when it is switched on. [1 mark]
P.7 • Electricity
26.
State any one primary sex characteristic in human females. [1 mark]
P.6 • The Reproductive System
27.
State any two ways in which washing clothes is important to human health. [1 mark]
P.6 • Science at Home and in Our Community
28.
Give one road safety practice for pedestrians crossing a busy road. [1 mark]
P.6 • Accidents and First Aid
29.
Give any one example of an emotional change in adolescents. [1 mark]
P.6 • The Reproductive System
30.
Give any one biological change that takes place in flowering plants. [1 mark]
P.5 • Types of Changes in the Environment
31.
Why is a tapeworm classified as an endoparasite? [1 mark]
P.6 • Classification of Animals
32.
What is meant by the term annual crops? [1 mark]
P.5 • Crop Growing
33.
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
34.
State one reason why alcohol is preferred to mercury in minimum thermometers. [1 mark]
P.5 • Heat Energy
35.
State the function of a ligament at a movable joint. [1 mark]
P.7 • The Muscular and Skeletal System
36.
Give one reason why food should be chewed properly before swallowing. [1 mark]
P.5 • The Digestive System
37.
State the difference between sand soil and clay soil in terms of particle size. [1 mark]
P.4 • Soil
38.
Why does sound travel fastest in solids compared to liquids and gases? [1 mark]
P.6 • Sound Energy
39.
State any one danger of cigarette smoking to the human respiratory system. [1 mark]
P.7 • The Respiratory System
40.
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
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