PAPER CODE: 532/1
MOCK REF: PLE-772765
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.
State the role of anhydrous calcium chloride in the laboratory investigation of rusting. [1 mark]
P.5 • Types of Changes in the Environment
2.
In an electric circuit diagram, which instrument is always connected in series to measure electric current? [1 mark]
P.7 • Electricity
3.
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
4.
How does a tortoise protect itself from predators and danger in the environment? [1 mark]
P.5 • Classification of Animals
5.
State one characteristic of essential drugs in Primary Health Care. [1 mark]
P.5 • Primary Health Care (PHC)
6.
State one nursery bed management practice done to harden off seedlings before transplanting. [1 mark]
P.5 • Crop Growing
7.
Give one reason why food should be chewed properly before swallowing. [1 mark]
P.5 • The Digestive System
8.
State one way in which food can get contaminated with disease-causing germs in a home. [1 mark]
P.5 • Food and Nutrition
9.
Why should a farmer select healthy and viable seeds before planting? [1 mark]
P.5 • Crop Growing
10.
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
11.
Name the longest and strongest bone found in the human body. [1 mark]
P.7 • The Muscular and Skeletal System
12.
Mention any one personal hygiene practice that prevents bad body odour. [1 mark]
P.6 • Personal Hygiene
13.
Why is a pregnant mother advised to eat plenty of food rich in iron? [1 mark]
P.5 • Food and Nutrition
14.
Identify the chemical substance used as a depolarizer in a standard dry Leclanché cell. [1 mark]
P.7 • Electricity
15.
What term refers to the meat obtained from an adult sheep? [1 mark]
P.5 • Keeping Goats, Sheep, and Pigs
16.
During which type of weather does water evaporate fastest from open surfaces? [1 mark]
P.4 • Weather Changes Around Us
17.
Give any two examples of water impurities. [1 mark]
P.6 • Science at Home and in Our Community
18.
Identify one airborne bacterial disease that affects the human skeleton. [1 mark]
P.7 • The Muscular and Skeletal System
19.
State the function of the eardrum (tympanic membrane) in the human ear. [1 mark]
P.6 • Sound Energy
20.
How does eating fresh oranges or lemons help prevent bleeding gums? [1 mark]
P.5 • Food and Nutrition
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.
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
23.
Name any one vaccine-preventable disease in Uganda that affects the liver. [1 mark]
P.5 • Primary Health Care (PHC)
24.
Give any one agricultural use of discarded plastic jerrycans or containers in a home. [1 mark]
P.6 • Science at Home and in Our Community
25.
Give any two examples of root tuber crops. [1 mark]
P.5 • Crop Growing
26.
State one structural adaptation of a coconut fruit for water dispersal. [1 mark]
P.5 • Plant Life
27.
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
28.
Name any one living thing that undergoes moulting in the environment. [1 mark]
P.5 • Types of Changes in the Environment
29.
Why is wood ash regularly poured into the pit of a latrine or Ecosan toilet? [1 mark]
P.6 • Sanitation
30.
State any one danger of bottle feeding to a four-month-old baby. [1 mark]
P.5 • Food and Nutrition
31.
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
32.
What is meant by non-renewable energy resources? [1 mark]
P.7 • Energy Resources in the Environment
33.
To which class of vertebrates do snakes and lizards belong? [1 mark]
P.5 • Classification of Animals
34.
State the scientific function of the screen (wire mesh) on top of the vent pipe of a VIP latrine. [1 mark]
P.6 • Sanitation
35.
State any one function of the diaphragm during the process of breathing. [1 mark]
P.6 • The Respiratory System
36.
Name the structure on the head of a tapeworm used for attachment to the intestinal wall. [1 mark]
P.6 • Classification of Animals
37.
How does the Ecosan latrine promote agricultural productivity? [1 mark]
P.6 • Sanitation
38.
Name the insect vector that spreads River Blindness (Onchocerciasis) to humans. [1 mark]
P.4 • Vectors and Diseases
39.
What general term refers to cattle kept primarily for ploughing and pulling carts? [1 mark]
P.6 • Keeping Cattle
40.
How can a person doing laundry prevent colored clothes from staining white clothes? [1 mark]
P.6 • Science at Home and in Our Community
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