PAPER CODE: 532/1
MOCK REF: PLE-458575
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.
What is meant by the term annual crops? [1 mark]
P.5 • Crop Growing
2.
Give any two examples of water impurities. [1 mark]
P.6 • Science at Home and in Our Community
3.
Why is an electric fuse constructed using a wire with a low melting point? [1 mark]
P.7 • Electricity
4.
Give any one example of a dual-purpose or heavy poultry breed. [1 mark]
P.5 • Keeping Poultry and Bees
5.
State the scientific function of the screen (wire mesh) on top of the vent pipe of a VIP latrine. [1 mark]
P.6 • Sanitation
6.
State one way of preventing the spread of Tuberculosis (TB). [1 mark]
P.7 • The Respiratory System
7.
State one activity a school Science Club can undertake to combat environmental deforestation. [1 mark]
P.5 • Managing Changes in the Environment
8.
Identify the chemical substance used as a depolarizer in a standard dry Leclanché cell. [1 mark]
P.7 • Electricity
9.
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
10.
Name two methods of obtaining clean water for washing at home. [1 mark]
P.6 • Science at Home and in Our Community
11.
Why does prolonged hunger sometimes lead to fainting? [1 mark]
P.6 • Accidents and First Aid
12.
How does painting an iron gate prevent it from rusting? [1 mark]
P.5 • Types of Changes in the Environment
13.
State the function of a ligament at a movable joint. [1 mark]
P.7 • The Muscular and Skeletal System
14.
Name the female parent in goat farming. [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
15.
State the role of anhydrous calcium chloride in the laboratory investigation of rusting. [1 mark]
P.5 • Types of Changes in the Environment
16.
State one way of increasing the electrical current produced by a bicycle dynamo. [1 mark]
P.7 • Electricity
17.
How does eating fresh oranges or lemons help prevent bleeding gums? [1 mark]
P.5 • Food and Nutrition
18.
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
19.
State one way of preventing accidental drug poisoning in young children at home. [1 mark]
P.6 • Accidents and First Aid
20.
Why is wood ash regularly poured into the pit of a latrine or Ecosan toilet? [1 mark]
P.6 • Sanitation
21.
Which weather condition is most suitable for solar drying harvested crops? [1 mark]
P.4 • Weather Changes Around Us
22.
Mention any two environmental conditions necessary for viable seeds to germinate. [1 mark]
P.5 • Plant Life
23.
How is tepid sponging useful to a casualty with high fever? [1 mark]
P.6 • Accidents and First Aid
24.
What term refers to the meat obtained from an adult sheep? [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
25.
Give any one reason why a burnt or scalded part of the skin is dipped in cold water immediately. [1 mark]
P.6 • Accidents and First Aid
26.
State the function of hairs (cilia) and mucus inside the human nostrils. [1 mark]
P.7 • The Respiratory System
27.
State any one way in which fermentation is important in our daily life. [1 mark]
P.6 • Alcohol, Smoking and Drugs
28.
State one method of reducing echoes in large school assembly halls. [1 mark]
P.6 • Sound Energy
29.
State any two ways in which washing clothes is important to human health. [1 mark]
P.6 • Science at Home and in Our Community
30.
State the difference between sand soil and clay soil in terms of particle size. [1 mark]
P.4 • Soil
31.
State one reproductive similarity between bread moulds (fungi) and ferns (plants). [1 mark]
P.5 • Fungi and Non-Flowering Plants
32.
State any one element of Primary Health Care. [1 mark]
P.5 • Primary Health Care (PHC)
33.
Why is an insect compelled to shed its outer covering periodically during growth? [1 mark]
P.7 • The Muscular and Skeletal System
34.
Name any one element of Primary Health Care (PHC). [1 mark]
P.5 • Primary Health Care (PHC)
35.
Why is the drop hole of a VIP latrine left open without a lid at all times? [1 mark]
P.6 • Sanitation
36.
Which part of the human body is affected by Otalgia? [1 mark]
P.6 • Sound Energy
37.
Name any one living thing that undergoes moulting in the environment. [1 mark]
P.5 • Types of Changes in the Environment
38.
State one reason why alcohol is preferred to mercury in minimum thermometers. [1 mark]
P.5 • Heat Energy
39.
State any one difference between an artery and a vein. [1 mark]
P.7 • The Circulatory System
40.
To which class of vertebrates do tortoises and chameleons belong? [1 mark]
P.5 • Classification of Animals
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