PAPER CODE: 532/1
MOCK REF: PLE-571528
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.
Give any two examples of water impurities. [1 mark]
P.6 • Science at Home and in Our Community
2.
Why is the chin lifted backwards when giving First Aid to an unconscious casualty? [1 mark]
P.6 • Accidents and First Aid
3.
Name the nutritional deficiency disease caused by a severe lack of Vitamin B1 in the diet. [1 mark]
P.5 • Food and Nutrition
4.
State any one difference between an artery and a vein. [1 mark]
P.7 • The Circulatory System
5.
Why is it dangerous to pour highly acidic substances or strong chemical insecticides into a pit latrine? [1 mark]
P.6 • Sanitation
6.
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
7.
What is meant by non-renewable energy resources? [1 mark]
P.7 • Energy Resources in the Environment
8.
Why is an insect compelled to shed its outer covering periodically during growth? [1 mark]
P.7 • The Muscular and Skeletal System
9.
Name any one type of latrine. [1 mark]
P.6 • Sanitation
10.
State the scientific function of the screen (wire mesh) on top of the vent pipe of a VIP latrine. [1 mark]
P.6 • Sanitation
11.
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
12.
State one activity a school Science Club can undertake to combat environmental deforestation. [1 mark]
P.5 • Managing Changes in the Environment
13.
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
14.
State any one importance of evaporation in the environment or daily life. [1 mark]
P.5 • Heat Energy
15.
Why is wood ash regularly poured into the pit of a latrine or Ecosan toilet? [1 mark]
P.6 • Sanitation
16.
State one personal hygiene activity done using a nail cutter or razor blade. [1 mark]
P.4 • Personal Hygiene
17.
Identify the chemical substance used as a depolarizer in a standard dry Leclanché cell. [1 mark]
P.7 • Electricity
18.
State the exact part of the female reproductive system where fertilization takes place. [1 mark]
P.6 • The Reproductive System
19.
To which class of vertebrates do tortoises and chameleons belong? [1 mark]
P.5 • Classification of Animals
20.
Name any one vital organ protected by the human rib cage. [1 mark]
P.7 • The Muscular and Skeletal System
21.
Why is the burning of dry paper classified as a chemical change? [1 mark]
P.5 • Types of Changes in the Environment
22.
How does the Ecosan latrine promote agricultural productivity? [1 mark]
P.6 • Sanitation
23.
Why is a pregnant mother advised to eat plenty of food rich in iron? [1 mark]
P.5 • Food and Nutrition
24.
Name the bud found in the leaf axil of a flowering plant. [1 mark]
P.4 • Plant Life
25.
Why does prolonged hunger sometimes lead to fainting? [1 mark]
P.6 • Accidents and First Aid
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.7 • The Respiratory System
(a) Name the gas needed for: (i) Aerobic respiration (1 mark), (ii) Produced as a waste product of respiration (1 mark)
(b) State any two dangers of violent wind in the environment. (2 marks)
27.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • 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
28.
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)
29.
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?
30.
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?
31.
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.
32.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • Classification of Animals
(a) State any two general characteristics of amphibians. (2 marks)
(b) Give two differences between fish and adult amphibians. (2 marks)
33.
Structured & Practical Assessment Item
[4 MARKS]
P.5 • The Digestive System
(a) Name the digestive liquid produced by salivary glands in the mouth. (1 mark)
(b) State two physical processes that happen to food inside the mouth during digestion. (2 marks)
(c) Name the digestive disorder characterized by difficulty in passing hard, dry stools. (1 mark)
34.
Structured & Practical Assessment Item
[4 MARKS]
P.7 • Forestry and Agroforestry
(a) Define the term agroforestry. (1 mark)
(b) State any one characteristic of suitable tree species used in agroforestry. (1 mark)
(c) Give any two benefits of agroforestry to a farmer. (2 marks)
35.
Structured & Practical Assessment Item
[4 MARKS]
P.6 • Classification of Animals
(a) Name the group of worms to which each of the following belongs:
(i) Tapeworm and Liver fluke (1 mark)
(ii) Roundworm and Hookworm (1 mark)
(b) State any two ways in which parasitic worms enter the human body. (2 marks)
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