PAPER CODE: 532/1
MOCK REF: PLE-739743
Uganda National Examinations Board
Primary Leaving Examination (Standard Science Mock)
INTEGRATED SCIENCE
TIME: 2h 15m
MARKS: 65
★ CANDIDATE QUESTION PAPER ★
Instructions to Candidates:
- This paper consists of two sections: Section A and Section B.
- Section A has 25 questions (25 marks). Section B has 10 questions (40 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 25) — 25 Marks
1 Mark eachQuestion 1 to 25 carry one mark each. Answer all questions in the spaces provided.
1.
State any one advantage of breast milk over commercial infant formula milk. [1 mark]
P.5 • Food and Nutrition
2.
Why is the burning of dry paper classified as a chemical change? [1 mark]
P.5 • Types of Changes in the Environment
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 any one reason why a residential living house should have large windows on opposite walls. [1 mark]
P.5 • Primary Health Care (PHC)
5.
How does boiling make water safe for drinking? [1 mark]
P.6 • Science at Home and in Our Community
6.
In which method of making water clean do you first allow the impurities to settle at the bottom of a container? [1 mark]
P.6 • Science at Home and in Our Community
7.
State the scientific function of the screen on top of the vent pipe of a VIP latrine. [1 mark]
P.6 • Sanitation
8.
State the function of a ligament at a movable joint. [1 mark]
P.7 • The Muscular and Skeletal System
9.
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
10.
Name the farm structure used to hold cattle or goats firmly during hand spraying, drenching, or vaccination. [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
11.
Which part of the human body is affected by Otalgia? [1 mark]
P.6 • Sound Energy
12.
Why is a pregnant mother advised to eat plenty of food rich in iron? [1 mark]
P.5 • Food and Nutrition
13.
Give any two examples of water impurities. [1 mark]
P.6 • Science at Home and in Our Community
14.
How is tepid sponging useful to a casualty with high fever? [1 mark]
P.6 • Accidents and First Aid
15.
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
16.
How is the function of the anthers in a flower similar to that of the testes in a human male? [1 mark]
P.6 • The Reproductive System
17.
State any one danger of bottle feeding to a four-month-old baby. [1 mark]
P.5 • Food and Nutrition
18.
Why is the drop hole of a VIP latrine left open without a lid at all times? [1 mark]
P.6 • Sanitation
19.
State any one danger of hanging colored clothes under direct sunshine for a long time to dry. [1 mark]
P.6 • Science at Home and in Our Community
20.
Why is an insect compelled to shed its outer covering periodically during growth? [1 mark]
P.7 • The Muscular and Skeletal System
21.
Give one reason why copper is the preferred metal for manufacturing electrical conducting cables in domestic installations. [1 mark]
P.7 • Electricity
22.
How is a burn different from a scald? [1 mark]
P.6 • Accidents and First Aid
23.
What is meant by the term balanced diet? [1 mark]
P.5 • Food and Nutrition
24.
State the reason why woolen clothes should be dried flat without wringing (twisting). [1 mark]
P.6 • Science at Home and in Our Community
25.
How does chlorine make water safe for drinking? [1 mark]
P.6 • Science at Home and in Our Community
Section B: (Questions 26 to 35) — 40 Marks
4 Marks eachQuestion 26 to 35 carry four marks each. All answers must be written in the spaces provided.
26.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • 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)
27.
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)
28.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Keeping Goats, Sheep, and Pigs
Measly pork is a serious public health problem in Uganda:
(a) What causes measly pork in pigs? (1 mark)
(b) Name the parasite whose larvae cause this condition. (1 mark)
(c) State any two ways a community can prevent tapeworm transmission from pigs to humans. (2 marks)
29.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Sanitation
(a) Give the difference between an Ordinary Pit Latrine and a VIP Latrine in terms of structural coverings.
(b) What material is used in an Ecosan latrine to dry human waste, and what is its role?
(c) State one major maintenance rule for a Water Closet (Flush Toilet) bowl.
30.
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.
31.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • The Reproductive System
(a) Name the male sex hormone responsible for secondary sex changes during puberty.
(b) Mention two secondary physical changes that occur only in boys during puberty.
(c) Name any one secondary physical change that is common to both boys and girls during puberty.
32.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Food and Nutrition
Weaning is an important milestone in infant growth:
(a) Define the term weaning. (1 mark)
(b) At what age should weaning start? (1 mark)
(c) Why should weaning NOT start earlier than this recommended age? (1 mark)
(d) State one danger of feeding a weaning child on plain maize porridge without enriching it. (1 mark)
33.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Accidents and First Aid
A child suddenly removed the cover of a saucepan full of boiling water. One of the child's arms was injured.
(a) Name the exact substance that injured the child.
(b) What kind of accident did the child get?
(c) State the first aid you would immediately give to the child.
(d) Give any one way in which the child would avoid the accident mentioned in (b) above.
34.
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)
35.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • The Muscular and Skeletal System
(a) What is a fracture?
(b) Distinguish between a simple fracture and a compound fracture.
(c) Give the main function of each of the following first aid items:
(i) Splints
(ii) Arm sling
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