PAPER CODE: 532/1
MOCK REF: PLE-121012
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.
Give one reason why copper is the preferred metal for manufacturing electrical conducting cables in domestic installations. [1 mark]
P.7 • Electricity
2.
State the scientific function of soap in cleaning clothes. [1 mark]
P.6 • Science at Home and in Our Community
3.
Identify the chemical substance used as a depolarizer in a standard dry Leclanché cell. [1 mark]
P.7 • Electricity
4.
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
5.
How does boiling make water safe for drinking? [1 mark]
P.6 • Science at Home and in Our Community
6.
State the function of hairs (cilia) and mucus inside the human nostrils. [1 mark]
P.7 • The Respiratory System
7.
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
8.
Name the part of an insect used for balancing during flight. [1 mark]
P.6 • Classification of Animals
9.
During which type of weather does water evaporate fastest from open surfaces? [1 mark]
P.4 • Weather Changes Around Us
10.
What is meant by non-renewable energy resources? [1 mark]
P.7 • Energy Resources in the Environment
11.
State one reason why alcohol is preferred to mercury in minimum thermometers. [1 mark]
P.5 • Heat Energy
12.
State the structural adaptation of incisor teeth to their function. [1 mark]
P.4 • The Teeth
13.
State one benefit of warming-up exercises to muscles before strenuous physical activities. [1 mark]
P.7 • The Muscular and Skeletal System
14.
What is meant by the term balanced diet? [1 mark]
P.5 • Food and Nutrition
15.
State one method of reducing echoes in large school assembly halls. [1 mark]
P.6 • Sound Energy
16.
What is meant by the term annual crops? [1 mark]
P.5 • Crop Growing
17.
Why does prolonged hunger sometimes lead to fainting? [1 mark]
P.6 • Accidents and First Aid
18.
State the fundamental law of electrostatics concerning like and unlike charges. [1 mark]
P.7 • Electricity
19.
State one way in which food can get contaminated with disease-causing germs in a home. [1 mark]
P.5 • Food and Nutrition
20.
Name the disorder of the skeletal system where a bone moves away from its normal position at a joint. [1 mark]
P.7 • The Muscular and Skeletal System
21.
State any one advantage of breast milk over commercial infant formula milk. [1 mark]
P.5 • Food and Nutrition
22.
Name the bud found in the leaf axil of a flowering plant. [1 mark]
P.4 • Plant Life
23.
How does painting an iron gate prevent it from rusting? [1 mark]
P.5 • Types of Changes in the Environment
24.
Give any two examples of water impurities. [1 mark]
P.6 • Science at Home and in Our Community
25.
Name any one type of latrine. [1 mark]
P.6 • Sanitation
26.
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
27.
Name the part of a cow that changes the color when a cow is on heat. [1 mark]
P.6 • Keeping Cattle
28.
Give one effect of thick clouds in the atmosphere. [1 mark]
P.4 • Weather Changes Around Us
29.
Give any one danger of rusting to a school farmer's tools. [1 mark]
P.5 • Types of Changes in the Environment
30.
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
31.
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
32.
Name the movable joint found between the atlas and axis vertebrae in the neck. [1 mark]
P.7 • The Muscular and Skeletal System
33.
State any one difference between an artery and a vein. [1 mark]
P.7 • The Circulatory System
34.
State one nursery bed management practice done to harden off seedlings before transplanting. [1 mark]
P.5 • Crop Growing
35.
Give any one example of an emotional change in adolescents. [1 mark]
P.6 • The Reproductive System
36.
How does a tortoise protect itself from predators and danger in the environment? [1 mark]
P.5 • Classification of Animals
37.
Why is it dangerous to pour highly acidic substances or strong chemical insecticides into a pit latrine? [1 mark]
P.6 • Sanitation
38.
Why is it not advisable to burst blisters on a burnt part of the skin? [1 mark]
P.6 • Accidents and First Aid
39.
Why is it recommended to use clean wood ash at a tip-tap facility when soap is not available? [1 mark]
P.5 • Primary Health Care (PHC)
40.
Why is an insect compelled to shed its outer covering periodically during growth? [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.5 • Keeping Goats, Sheep, and Pigs
The diagram below represents housing and management in goat farming:
(a) State the role of guard rails in a farrowing pen. (1 mark)
(b) Why should the floor of a goat shed be made of wooden slats raised off the ground? (1 mark)
(c) Name any two routine operations carried out in a livestock crush. (2 marks)
42.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Primary Health Care (PHC)
(a) Write down the full meaning of the abbreviation PHC. (1 mark)
(b) State any two core principles of Primary Health Care. (2 marks)
(c) Why is Primary Health Care considered more economical for developing nations like Uganda than curative hospital care? (1 mark)
43.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Types of Changes in the Environment
Study the experimental setups below showing nails left in four test tubes for five days:
(a) In which test tube did the nail rust fastest? (1 mark)
(b) Why didn't the nail in Test-Tube B (boiled water + oil) rust? (1 mark)
(c) What was the purpose of Test-Tube C containing anhydrous calcium chloride? (1 mark)
(d) State the two environmental conditions necessary for iron to rust. (1 mark)
44.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Types of Changes in the Environment
A Primary 5 pupil heated a tin can with water, sealed it tightly, and poured cold water on it.
(a) What happened to the tin can? (1 mark)
(b) Explain why that happened to the can. (2 marks)
(c) Which physical state transition occurred inside the can? (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.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)
47.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • The Reproductive System
(a) Write down any two disorders that affect the male reproductive system.
(b) State any one advantage of child spacing to a mother in a family.
(c) Give any one reason why females are highly affected by HIV/AIDS during intercourse.
48.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Sound Energy
Define the following scientific terms related to sound:
(a) Volume (1 mark)
(b) Pitch (1 mark)
(c) Frequency (1 mark)
(d) Echo (1 mark)
49.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • Electricity
(a) What is a short circuit?
(b) State two common causes of short circuits in residential houses.
(c) Why should water never be used to extinguish an electrical fire?
50.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Science at Home and in Our Community
Name the step used in cleaning clothes that:
(a) Removes excess water from the clothes.
(b) Removes soapy water from the washed garments.
51.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Sanitation
(a) State any two poor sanitation conditions in a school compound that can encourage the breeding of disease vectors. (2 marks)
(b) Name any two vector-borne or water-borne diseases that can break out as a result of the poor conditions in (a). (2 marks)
52.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Types of Changes in the Environment
Human activities bring about changes in the environment:
(a) Define the term afforestation. (1 mark)
(b) Give any two reasons why people cut down trees on a large scale (deforestation). (2 marks)
(c) State one way in which cutting down trees leads to severe environmental flooding. (1 mark)
53.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Classification of Animals
(a) Name the group of worms to which each of the following belongs:
(i) Tapeworm and Liver fluke (1 mark)
(ii) Roundworm and Hookworm (1 mark)
(b) State any two ways in which parasitic worms enter the human body. (2 marks)
54.
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.
55.
Structured & Practical Assessment Item
[4 MARKS]
P.4 • Soil
An experiment was carried out where equal amounts of water were poured through equal volumes of clay soil and sand soil in funnels lined with cotton wool:
(a) Which physical soil property was being investigated? (1 mark)
(b) State the role of cotton wool placed at the neck of the funnel. (1 mark)
(c) In which type of soil did water drain fastest, and give a reason why. (2 marks)
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