PAPER CODE: 532/1
MOCK REF: PLE-260009
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.
State any two ways in which washing clothes is important to human health. [1 mark]
P.6 • Science at Home and in Our Community
2.
How does boiling make water safe for drinking? [1 mark]
P.6 • Science at Home and in Our Community
3.
Why is the floor of a modern pigsty built with a gentle slope towards the drainage channel? [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
4.
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
5.
State the scientific function of soap in cleaning clothes. [1 mark]
P.6 • Science at Home and in Our Community
6.
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
7.
Name the part of a cow that changes the color when a cow is on heat. [1 mark]
P.6 • Keeping Cattle
8.
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
9.
What is the color code of the earth wire in a modern standard three-pin plug? [1 mark]
P.7 • Electricity
10.
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)
11.
Give any one example of an emotional change in adolescents. [1 mark]
P.6 • The Reproductive System
12.
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
13.
In an electric circuit diagram, which instrument is always connected in series to measure electric current? [1 mark]
P.7 • Electricity
14.
Identify one airborne bacterial disease that affects the human skeleton. [1 mark]
P.7 • The Muscular and Skeletal System
15.
Why is an insect compelled to shed its outer covering periodically during growth? [1 mark]
P.7 • The Muscular and Skeletal System
16.
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
17.
State any one advantage of castrating male piglets not intended for breeding. [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
18.
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
19.
Why is the drop hole of a VIP latrine left open without a lid at all times? [1 mark]
P.6 • Sanitation
20.
Why is an electric fuse constructed using a wire with a low melting point? [1 mark]
P.7 • Electricity
21.
How does chlorine make water safe for drinking? [1 mark]
P.6 • Science at Home and in Our Community
22.
State any one danger of bottle feeding to a four-month-old baby. [1 mark]
P.5 • Food and Nutrition
23.
What term refers to the meat obtained from an adult sheep? [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
24.
Why is it not advisable to burst blisters on a burnt part of the skin? [1 mark]
P.6 • Accidents and First Aid
25.
State the function of the U-trap in a water closet (flush toilet). [1 mark]
P.6 • Sanitation
26.
What is meant by the term balanced diet? [1 mark]
P.5 • Food and Nutrition
27.
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
28.
State the biological function of the ciliated cells lining the fallopian tubes. [1 mark]
P.6 • The Reproductive System
29.
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
30.
Which part of the human body is affected by Otalgia? [1 mark]
P.6 • Sound Energy
31.
State any one primary sex characteristic in human females. [1 mark]
P.6 • The Reproductive System
32.
Give the scientific meaning of the term skeleton. [1 mark]
P.7 • The Muscular and Skeletal System
33.
Why is it dangerous to pour highly acidic substances or strong chemical insecticides into a pit latrine? [1 mark]
P.6 • Sanitation
34.
Name the longest and strongest bone found in the human body. [1 mark]
P.7 • The Muscular and Skeletal System
35.
What is Primary Health Care (PHC)? [1 mark]
P.5 • Primary Health Care (PHC)
36.
Name any one living thing that undergoes moulting in the environment. [1 mark]
P.5 • Types of Changes in the Environment
37.
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
38.
Name the deficiency disease caused by a severe lack of Vitamin C in the diet. [1 mark]
P.5 • Food and Nutrition
39.
State the reason why woolen clothes should be dried flat without wringing (twisting). [1 mark]
P.6 • Science at Home and in Our Community
40.
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
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 • 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)
42.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • The Muscular and Skeletal System
The diagram below illustrates a Primary 7 wooden teaching arm model:
[Upper Wood] connected by a [Hinge] to [Lower Wood], with [Cord] and [Rubber Band].
(a) Which bone in the human arm is represented by the upper wood?
(b) Name the muscle represented by: (i) Cord (ii) Rubber band
(c) What anatomical joint is represented by the hinge?
43.
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.
44.
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)
45.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Sanitation
(a) What physical condition results when a patient passes out watery stools many times a day?
(b) State two physical signs of the condition mentioned in (a) above.
(c) What first aid treatment is given to a victim of the condition in (a) to restore balance?
46.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • 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.
47.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • The Reproductive System
Match the reproductive structures in Part A with their correct physiological functions in Part B:
Epididymis
Scrotum
Cervix
Vas deferens
48.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • 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)?
49.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Sanitation
Study the waste transmission elements below and answer the questions that follow:
Faeces ──► Vector (Fly) ──► Food ──► Fingers ──► Healthy Person
(a) What scientific name is given to the disease-spreading pathway shown above?
(b) Give any two examples of communicable diarrhoeal diseases spread through this pathway.
(c) State any one physical activity done at home to block vectors from accessing Food.
50.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Primary Health Care (PHC)
Primary Health Care involves responsibilities at different levels:
(a) State any one role of an individual in promoting PHC. (1 mark)
(b) State any one role of a school in promoting PHC. (1 mark)
(c) Mention any two roles played by Village Health Teams (VHTs) in a community. (2 marks)
51.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Science at Home and in Our Community
The diagram below shows a simple setup of making water clean. Study and use it to answer the questions that follow:
[ Water poured here ]
↓
|~~~~~~~~~~~~~~~| | Coarse Stones | <--- Container T \ / \ Clean Water/ \___________/
↓
[---------] | S | <--- Container S |_________|
(a) Name the method used above.
(b) Apart from coarse stones, name any two other local materials that can be placed in container T.
(c) Why should the clean water obtained in container S be boiled before drinking?
52.
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)
53.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Food and Nutrition
The table below shows two children suffering from malnutrition:
(a) Name the deficiency disease Child X is suffering from if he has swollen feet, moon face, and reddish hair. (1 mark)
(b) Name the deficiency disease Child Y is suffering from if he has extreme wasting, visible ribs, and an old person's face. (1 mark)
(c) What nutrient is severely lacking in Child X's diet? (1 mark)
(d) Give any one food you would feed Child X to cure this condition. (1 mark)
54.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Accidents and First Aid
(a) State the difference between drowning and near drowning.
(b) Give any two common causes of near drowning.
(c) State any one way you can help save a near-drowned casualty.
55.
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.
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