PAPER CODE: 532/1
MOCK REF: PLE-467598
Uganda National Examinations Board
Primary Leaving Examination (Standard Science Mock)
INTEGRATED SCIENCE
TIME: 2h 15m
MARKS: 100
ā
CANDIDATE QUESTION PAPER ā
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) ā 40 Marks
1 Mark eachQuestion 1 to 40 carry one mark each. Answer all questions in the spaces provided.
1.
State the exact part of the female reproductive system where fertilization takes place. [1 mark]
P.6 ā¢ The Reproductive System
2.
How is a burn different from a scald? [1 mark]
P.6 ā¢ Accidents and First Aid
3.
State the function of the U-trap in a water closet (flush toilet). [1 mark]
P.6 ā¢ Sanitation
4.
Name the part of an insect used for balancing during flight. [1 mark]
P.6 ā¢ Classification of Animals
5.
Give any two examples of water impurities. [1 mark]
P.6 ā¢ Science at Home and in Our Community
6.
Give the scientific meaning of the term skeleton. [1 mark]
P.7 ā¢ The Muscular and Skeletal System
7.
Which part of the human body is affected by Otalgia? [1 mark]
P.6 ā¢ Sound Energy
8.
What kind of water is recommended for use during tepid sponging, and why should very cold water be avoided? [1 mark]
P.6 ā¢ Accidents and First Aid
9.
State the role of anhydrous calcium chloride in the laboratory investigation of rusting. [1 mark]
P.5 ā¢ Types of Changes in the Environment
10.
Why is the drop hole of a VIP latrine left open without a lid at all times? [1 mark]
P.6 ā¢ Sanitation
11.
What is meant by the term balanced diet? [1 mark]
P.5 ā¢ Food and Nutrition
12.
State the scientific function of soap in cleaning clothes. [1 mark]
P.6 ā¢ Science at Home and in Our Community
13.
Why is the floor of a modern pigsty built with a gentle slope towards the drainage channel? [1 mark]
P.5 ā¢ Keeping Goats, Sheep, and Pigs
14.
Identify one airborne bacterial disease that affects the human skeleton. [1 mark]
P.7 ā¢ The Muscular and Skeletal System
15.
State any two ways in which washing clothes is important to human health. [1 mark]
P.6 ā¢ Science at Home and in Our Community
16.
Name the longest and strongest bone found in the human body. [1 mark]
P.7 ā¢ The Muscular and Skeletal System
17.
The diagram below shows an animal in the group of invertebrates. (Snail diagram) Name the animal shown. [1 mark]
P.6 ā¢ Classification of Animals
18.
Name the disorder of the skeletal system where a bone moves away from its normal position at a joint. [1 mark]
P.7 ā¢ The Muscular and Skeletal System
19.
How does the Ecosan latrine promote agricultural productivity? [1 mark]
P.6 ā¢ Sanitation
20.
State any one danger of bottle feeding to a four-month-old baby. [1 mark]
P.5 ā¢ Food and Nutrition
21.
Why is a husband and his wife advised to go for treatment together when they contract gonorrhoea? [1 mark]
P.6 ā¢ The Reproductive System
22.
Name any one type of latrine. [1 mark]
P.6 ā¢ Sanitation
23.
State any one primary sex characteristic in human females. [1 mark]
P.6 ā¢ The Reproductive System
24.
Name two methods of obtaining clean water for washing at home. [1 mark]
P.6 ā¢ Science at Home and in Our Community
25.
State the reason why woolen clothes should be dried flat without wringing (twisting). [1 mark]
P.6 ā¢ Science at Home and in Our Community
26.
What is Primary Health Care (PHC)? [1 mark]
P.5 ā¢ Primary Health Care (PHC)
27.
Mention one way in which you can prevent some clothes from staining others during washing. [1 mark]
P.6 ā¢ Science at Home and in Our Community
28.
State any one way in which the ironing of clothes is useful when cleaning clothes. [1 mark]
P.6 ā¢ Science at Home and in Our Community
29.
Give one reason why a person who has fainted should be placed in a cool, open, and well-ventilated space. [1 mark]
P.6 ā¢ Accidents and First Aid
30.
State any one advantage of castrating male piglets not intended for breeding. [1 mark]
P.5 ā¢ Keeping Goats, Sheep, and Pigs
31.
State any one advantage of breast milk over commercial infant formula milk. [1 mark]
P.5 ā¢ Food and Nutrition
32.
How is tepid sponging useful to a casualty with high fever? [1 mark]
P.6 ā¢ Accidents and First Aid
33.
State any one way in which fermentation is important in our daily life. [1 mark]
P.6 ā¢ Alcohol, Smoking and Drugs
34.
Name the farm structure used to hold cattle or goats firmly during hand spraying, drenching, or vaccination. [1 mark]
P.5 ā¢ Keeping Goats, Sheep, and Pigs
35.
Why is it dangerous to pour highly acidic substances or strong chemical insecticides into a pit latrine? [1 mark]
P.6 ā¢ Sanitation
36.
Identify the chemical substance used as a depolarizer in a standard dry LeclanchƩ cell. [1 mark]
P.7 ā¢ Electricity
37.
Why is water obtained by the distillation method not recommended for drinking at home? [1 mark]
P.6 ā¢ Science at Home and in Our Community
38.
Give any one psychological life skill that adolescent girls can develop to safeguard themselves against early teenage pregnancies. [1 mark]
P.6 ā¢ The Reproductive System
39.
How does eating fresh oranges or lemons help prevent bleeding gums? [1 mark]
P.5 ā¢ Food and Nutrition
40.
State the fundamental law of electrostatics concerning like and unlike charges. [1 mark]
P.7 ā¢ Electricity
Section B: (Questions 41 to 55) ā 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 ā¢ Types of Changes in the Environment
(a) State the difference between a physical change and a biological change. (1 mark)
(b) Give any two examples of physical changes involving heat gain. (2 marks)
(c) Name the physical process that occurs when morning dew turns into water vapour as the sun rises. (1 mark)
42.
Structured & Practical Assessment Item
[4 MARKS]
P.6 ā¢ 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.
43.
Structured & Practical Assessment Item
[4 MARKS]
P.5 ā¢ 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)
44.
Structured & Practical Assessment Item
[4 MARKS]
P.6 ā¢ 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.
45.
Structured & Practical Assessment Item
[4 MARKS]
P.5 ā¢ 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)
46.
Structured & Practical Assessment Item
[4 MARKS]
P.7 ā¢ Electricity
The diagram represents a simple dry cell:
(a) Name the parts marked:
(i) Outer metal casing
(ii) Central black rod
(b) What is the function of the ammonium chloride paste?
(c) Why does a dry cell eventually lose power (go flat)?
47.
Structured & Practical Assessment Item
[4 MARKS]
P.7 ā¢ 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.
48.
Structured & Practical Assessment Item
[4 MARKS]
P.6 ā¢ Science at Home and in Our Community
Match the laundry terms in Part A with their correct scientific meanings in Part B:
Sorting
Wringing
Rinsing
Soaking
49.
Structured & Practical Assessment Item
[4 MARKS]
P.6 ā¢ Science at Home and in Our Community
(a) Name one plant material from which local salt can be prepared at home.
(b) State the physical method used to prepare local salt from ash.
(c) Give any two ways in which the local salt prepared at home is useful to people.
50.
Structured & Practical Assessment Item
[4 MARKS]
P.6 ā¢ 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.6 ā¢ Accidents and First Aid
(a) Why should a first aider never induce vomiting in a casualty who has swallowed paraffin or kerosene?
(b) What first aid should be given to a paraffin poisoning victim?
(c) How should a first aider manage a non-corrosive poisoning casualty?
52.
Structured & Practical Assessment Item
[4 MARKS]
P.5 ā¢ 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)
53.
Structured & Practical Assessment Item
[4 MARKS]
P.6 ā¢ 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.
54.
Structured & Practical Assessment Item
[4 MARKS]
P.5 ā¢ Keeping Goats, Sheep, and Pigs
A farmer noticed his goats were limping and producing a bad smell from their hooves:
(a) Which livestock disease is the farmer's herd likely suffering from? (1 mark)
(b) State the environmental condition in the goat pen that promotes this disease. (1 mark)
(c) Outline any two measures the farmer should take to control this disease. (2 marks)
55.
Structured & Practical Assessment Item
[4 MARKS]
P.6 ā¢ 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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