PAPER CODE: 532/1
MOCK REF: PLE-682113
Uganda National Examinations Board
Primary Leaving Examination (Standard Science Mock)
INTEGRATED SCIENCE
TIME: 2h 15m
MARKS: 65
โ
CANDIDATE QUESTION PAPER โ
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) โ 25 Marks
1 Mark eachQuestion 1 to 25 carry one mark each. Answer all questions in the spaces provided.
1.
Why is the drop hole of a VIP latrine left open without a lid at all times? [1 mark]
P.6 โข Sanitation
2.
Name the deficiency disease caused by a severe lack of Vitamin C in the diet. [1 mark]
P.5 โข Food and Nutrition
3.
State any one way in which the ironing of clothes is useful when cleaning clothes. [1 mark]
P.6 โข Science at Home and in Our Community
4.
State the function of hooks and suckers on the scolex of a tapeworm. [1 mark]
P.6 โข Classification of Animals
5.
Why is it raised legs that are required when giving first aid to a person who has fainted? [1 mark]
P.6 โข Accidents and First Aid
6.
What is meant by non-renewable energy resources? [1 mark]
P.7 โข Energy Resources in the Environment
7.
State one way PIASCY messages help primary school pupils prevent HIV/AIDS infection. [1 mark]
P.6 โข The Reproductive System
8.
Name the part of a cow that changes the color when a cow is on heat. [1 mark]
P.6 โข Keeping Cattle
9.
What is meant by the term annual crops? [1 mark]
P.5 โข Crop Growing
10.
Which part of the human body is affected by Otalgia? [1 mark]
P.6 โข Sound Energy
11.
State the function of hairs (cilia) and mucus inside the human nostrils. [1 mark]
P.7 โข The Respiratory System
12.
During which type of weather does water evaporate fastest from open surfaces? [1 mark]
P.4 โข Weather Changes Around Us
13.
Why should a farmer select healthy and viable seeds before planting? [1 mark]
P.5 โข Crop Growing
14.
State one way in which food can get contaminated with disease-causing germs in a home. [1 mark]
P.5 โข Food and Nutrition
15.
Why does sound travel fastest in solids compared to liquids and gases? [1 mark]
P.6 โข Sound Energy
16.
How does eating fresh oranges or lemons help prevent bleeding gums? [1 mark]
P.5 โข Food and Nutrition
17.
Give any one reason why a burnt or scalded part of the skin is dipped in cold water immediately. [1 mark]
P.6 โข Accidents and First Aid
18.
Why does the water level in a measuring cylinder rise when a stone is completely immersed in it? [1 mark]
P.5 โข Matter and Energy
19.
Give any one example of an external parasite (ectoparasite) that attacks cattle. [1 mark]
P.6 โข Keeping Cattle
20.
Name any one vaccine-preventable disease in Uganda that affects the liver. [1 mark]
P.5 โข Primary Health Care (PHC)
21.
How is tepid sponging useful to a casualty with high fever? [1 mark]
P.6 โข Accidents and First Aid
22.
State the reason why woolen clothes should be dried flat without wringing (twisting). [1 mark]
P.6 โข Science at Home and in Our Community
23.
State any one way in which fermentation is important in our daily life. [1 mark]
P.6 โข Alcohol, Smoking and Drugs
24.
The diagram below shows an animal in the group of invertebrates. (Snail diagram) Name the animal shown. [1 mark]
P.6 โข Classification of Animals
25.
Name any one vital organ protected by the human rib cage. [1 mark]
P.7 โข The Muscular and Skeletal System
Section B: (Questions 26 to 35) โ 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 โข 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 โข The Reproductive System
(a) State the difference between identical twins and fraternal twins in terms of fertilization.
(b) State any two physical characteristics unique to identical twins.
28.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Types of Changes in the Environment
Study the experimental setups below showing nails left in four test tubes for five days:
(a) In which test tube did the nail rust fastest? (1 mark)
(b) Why didn't the nail in Test-Tube B (boiled water + oil) rust? (1 mark)
(c) What was the purpose of Test-Tube C containing anhydrous calcium chloride? (1 mark)
(d) State the two environmental conditions necessary for iron to rust. (1 mark)
29.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข The Respiratory System
(a) Name the respiratory tube that branches from the trachea into each lung. (1 mark)
(b) State the role of rings of cartilage found around the trachea. (1 mark)
(c) What happens to the following during inhalation (breathing in):
(i) The diaphragm (1 mark)
(ii) The volume of the chest cavity (1 mark)
30.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Types of Changes in the Environment
Human activities bring about changes in the environment:
(a) Define the term afforestation. (1 mark)
(b) Give any two reasons why people cut down trees on a large scale (deforestation). (2 marks)
(c) State one way in which cutting down trees leads to severe environmental flooding. (1 mark)
31.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข 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.
32.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข Simple Machines
A crowbar is used to lift a heavy stone with the fulcrum positioned between the load and the effort:
(a) To which class of levers does the crowbar belong? (1 mark)
(b) State the principle of moments used in levers. (1 mark)
(c) Give any two other everyday examples of machines belonging to the class of levers identified in (a). (2 marks)
33.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Keeping Goats, Sheep, and Pigs
(a) Name any one exotic breed of dairy goats. (1 mark)
(b) Name the commercial textile product obtained from Angora goats. (1 mark)
(c) State any two advantages of keeping goats over keeping cattle. (2 marks)
34.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข The Reproductive System
(a) State the difference between vasectomy and tubal ligation as methods of family planning.
(b) Why is the use of condoms highly recommended during family planning compared to other methods?
(c) Name one natural family planning method.
35.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข Electricity
(a) What is a short circuit?
(b) State two common causes of short circuits in residential houses.
(c) Why should water never be used to extinguish an electrical fire?
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