PAPER CODE: 532/1
MOCK REF: PLE-721124
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.
Give any two examples of water impurities. [1 mark]
P.6 • Science at Home and in Our Community
2.
Give any one biological change that takes place in flowering plants. [1 mark]
P.5 • Types of Changes in the Environment
3.
Give any one role of water during seed germination. [1 mark]
P.5 • Plant Life
4.
Name the part of a cow that changes the color when a cow is on heat. [1 mark]
P.6 • Keeping Cattle
5.
Why is the chin lifted backwards when giving First Aid to an unconscious casualty? [1 mark]
P.6 • Accidents and First Aid
6.
Give any one example of an emotional change in adolescents. [1 mark]
P.6 • The Reproductive System
7.
Why are small gaps left between railway rails during track construction? [1 mark]
P.5 • Heat Energy
8.
State the exact part of the female reproductive system where fertilization takes place. [1 mark]
P.6 • The Reproductive System
9.
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
10.
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
11.
State one personal hygiene activity done using a nail cutter or razor blade. [1 mark]
P.4 • Personal Hygiene
12.
State one reason why alcohol is preferred to mercury in minimum thermometers. [1 mark]
P.5 • Heat Energy
13.
State one way in which school children can help their community control the spread of malaria. [1 mark]
P.5 • Control of Malaria
14.
State the role of anhydrous calcium chloride in the laboratory investigation of rusting. [1 mark]
P.5 • Types of Changes in the Environment
15.
Why does sound travel fastest in solids compared to liquids and gases? [1 mark]
P.6 • Sound Energy
16.
State one structural adaptation of a coconut fruit for water dispersal. [1 mark]
P.5 • Plant Life
17.
Name the movable joint found between the atlas and axis vertebrae in the neck. [1 mark]
P.7 • The Muscular and Skeletal System
18.
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
19.
Give any one example of a dual-purpose or heavy poultry breed. [1 mark]
P.5 • Keeping Poultry and Bees
20.
Why is an insect compelled to shed its outer covering periodically during growth? [1 mark]
P.7 • The Muscular and Skeletal System
21.
Why is it not advisable to give a convulsing or fainted person food to eat or water to drink? [1 mark]
P.6 • Accidents and First Aid
22.
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
23.
State any one element of Primary Health Care. [1 mark]
P.5 • Primary Health Care (PHC)
24.
State one reason why a torch may fail to produce light even when it is switched on. [1 mark]
P.7 • Electricity
25.
State any one danger of cigarette smoking to the human respiratory system. [1 mark]
P.7 • The Respiratory System
26.
Give one road safety practice for pedestrians crossing a busy road. [1 mark]
P.6 • Accidents and First Aid
27.
State the fundamental law of electrostatics concerning like and unlike charges. [1 mark]
P.7 • Electricity
28.
Give any one reason why a residential living house should have large windows on opposite walls. [1 mark]
P.5 • Primary Health Care (PHC)
29.
State the structural adaptation of incisor teeth to their function. [1 mark]
P.4 • The Teeth
30.
How does chlorine make water safe for drinking? [1 mark]
P.6 • Science at Home and in Our Community
31.
What term refers to the meat obtained from an adult sheep? [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
32.
State any one importance of evaporation in the environment or daily life. [1 mark]
P.5 • Heat Energy
33.
State one way of preventing the spread of Tuberculosis (TB). [1 mark]
P.7 • The Respiratory System
34.
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
35.
Identify one airborne bacterial disease that affects the human skeleton. [1 mark]
P.7 • The Muscular and Skeletal System
36.
How does eating fresh oranges or lemons help prevent bleeding gums? [1 mark]
P.5 • Food and Nutrition
37.
Mention one way in which you can prevent some clothes from staining others during washing. [1 mark]
P.6 • Science at Home and in Our Community
38.
How does painting an iron gate prevent it from rusting? [1 mark]
P.5 • Types of Changes in the Environment
39.
Give any one function of proteins in the human body. [1 mark]
P.4 • Food and Nutrition
40.
What is the color code of the earth wire in a modern standard three-pin plug? [1 mark]
P.7 • Electricity
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