PAPER CODE: 532/1
MOCK REF: PLE-432869
Uganda National Examinations Board
Primary Leaving Examination (Standard Science Mock)
INTEGRATED SCIENCE
TIME: 2h 15m
MARKS: 100
โ
CANDIDATE QUESTION PAPER โ
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) โ 40 Marks
1 Mark eachQuestion 1 to 40 carry one mark each. Answer all questions in the spaces provided.
1.
Why is a pregnant mother advised to eat plenty of food rich in iron? [1 mark]
P.5 โข Food and Nutrition
2.
State one way in which people can conserve non-renewable energy resources. [1 mark]
P.7 โข Energy Resources in the Environment
3.
State one nursery bed management practice done to harden off seedlings before transplanting. [1 mark]
P.5 โข Crop Growing
4.
Why is an electric fuse constructed using a wire with a low melting point? [1 mark]
P.7 โข Electricity
5.
Mention any two environmental conditions necessary for viable seeds to germinate. [1 mark]
P.5 โข Plant Life
6.
State one activity a school Science Club can undertake to combat environmental deforestation. [1 mark]
P.5 โข Managing 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 โข Keeping Cattle
8.
State any one factor to consider when selecting a suitable site for an apiary. [1 mark]
P.5 โข Keeping Poultry and Bees
9.
Give any one example of an emotional change in adolescents. [1 mark]
P.6 โข The Reproductive System
10.
In a food web, how do carnivorous animals obtain their energy? [1 mark]
P.6 โข Environment and Food Chains
11.
State the structural adaptation of incisor teeth to their function. [1 mark]
P.4 โข The Teeth
12.
State one structural adaptation of a coconut fruit for water dispersal. [1 mark]
P.5 โข Plant Life
13.
State any one way in which fermentation is important in our daily life. [1 mark]
P.6 โข Alcohol, Smoking and Drugs
14.
Name any one element of Primary Health Care (PHC). [1 mark]
P.5 โข Primary Health Care (PHC)
15.
Give any one reason why veterinary doctors advise farmers NEVER to open the carcass of an animal suspected to have died of Anthrax. [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
16.
State the condition that must be present for a shadow to be formed. [1 mark]
P.7 โข Light Energy
17.
What general term refers to cattle kept primarily for ploughing and pulling carts? [1 mark]
P.6 โข Keeping Cattle
18.
Name the bud found in the leaf axil of a flowering plant. [1 mark]
P.4 โข Plant Life
19.
Give any one example of a dual-purpose or heavy poultry breed. [1 mark]
P.5 โข Keeping Poultry and Bees
20.
Identify one airborne bacterial disease that affects the human skeleton. [1 mark]
P.7 โข The Muscular and Skeletal System
21.
To which class of vertebrates do tortoises and chameleons belong? [1 mark]
P.5 โข Classification of Animals
22.
Name the movable joint found between the atlas and axis vertebrae in the neck. [1 mark]
P.7 โข The Muscular and Skeletal System
23.
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
24.
Name the insect vector that spreads River Blindness (Onchocerciasis) to humans. [1 mark]
P.4 โข Vectors and Diseases
25.
Name any one excretory product eliminated by the human lungs. [1 mark]
P.7 โข The Excretory System
26.
Give one reason why a person who has fainted should be placed in a cool, open, and well-ventilated space. [1 mark]
P.6 โข Accidents and First Aid
27.
Which part of a mammalian tooth contains blood vessels and nerves? [1 mark]
P.4 โข The Teeth
28.
Why is wood ash regularly poured into the pit of a latrine or Ecosan toilet? [1 mark]
P.6 โข Sanitation
29.
How does chlorine make water safe for drinking? [1 mark]
P.6 โข Science at Home and in Our Community
30.
How does painting an iron gate prevent it from rusting? [1 mark]
P.5 โข Types of Changes in the Environment
31.
State the scientific function of the screen (wire mesh) on top of the vent pipe of a VIP latrine. [1 mark]
P.6 โข Sanitation
32.
State the difference between sand soil and clay soil in terms of particle size. [1 mark]
P.4 โข Soil
33.
Why is the burning of dry paper classified as a chemical change? [1 mark]
P.5 โข Types of Changes in the Environment
34.
Why is a husband and his wife advised to go for treatment together when they contract gonorrhoea? [1 mark]
P.6 โข The Reproductive System
35.
State one way of preventing the spread of Tuberculosis (TB). [1 mark]
P.7 โข The Respiratory System
36.
State the role of anhydrous calcium chloride in the laboratory investigation of rusting. [1 mark]
P.5 โข Types of Changes in the Environment
37.
State one characteristic of essential drugs in Primary Health Care. [1 mark]
P.5 โข Primary Health Care (PHC)
38.
How is the function of the anthers in a flower similar to that of the testes in a human male? [1 mark]
P.6 โข The Reproductive System
39.
State the scientific function of the screen on top of the vent pipe of a VIP latrine. [1 mark]
P.6 โข Sanitation
40.
State any one element of Primary Health Care. [1 mark]
P.5 โข Primary Health Care (PHC)
Section B: (Questions 41 to 55) โ 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 โข Food and Nutrition
Weaning is an important milestone in infant growth:
(a) Define the term weaning. (1 mark)
(b) At what age should weaning start? (1 mark)
(c) Why should weaning NOT start earlier than this recommended age? (1 mark)
(d) State one danger of feeding a weaning child on plain maize porridge without enriching it. (1 mark)
42.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Plant Life
(a) Name the method of seed dispersal for each of the following fruits:
(i) Black jack (1 mark)
(ii) Sycamore (1 mark)
(b) State any two structural adaptations of seeds dispersed by wind. (2 marks)
43.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Crop Growing
Match each crop management practice in Column A with its correct agricultural purpose in Column B:
(a) Mulching
(b) Pruning
(c) Thinning
(d) Weeding
44.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Primary Health Care (PHC)
The diagram below shows a sanitary homestead structure:
(a) Name the structure described as a raised wooden rack used for drying utensils. (1 mark)
(b) Give two reasons why washed plates should be dried on this structure rather than on the ground. (2 marks)
(c) How does direct sunlight assist in the sanitation of utensils on this rack? (1 mark)
45.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข 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.5 โข Primary Health Care (PHC)
(a) State any two types of health information collected during a community health survey. (2 marks)
(b) Give two reasons why health surveys are important to a community. (2 marks)
47.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Crop Growing
(a) State any one danger of weeds to growing crops. (1 mark)
(b) Give any two cultural methods of controlling weeds in a garden. (2 marks)
(c) State one routine management practice carried out on climbing crops like tomatoes. (1 mark)
48.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข 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.
49.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Matter and Energy
(a) In which state of matter are molecules furthest apart and free to move randomly in all directions? (1 mark)
(b) Name the physical process that occurs when:
(i) A solid changes directly into a gas without turning into a liquid (1 mark)
(ii) A liquid changes into a solid (1 mark)
(c) Give one practical example of a substance that undergoes sublimation. (1 mark)
50.
Structured & Practical Assessment Item
[4 MARKS]
P.4 โข Soil
An experiment was carried out where equal amounts of water were poured through equal volumes of clay soil and sand soil in funnels lined with cotton wool:
(a) Which physical soil property was being investigated? (1 mark)
(b) State the role of cotton wool placed at the neck of the funnel. (1 mark)
(c) In which type of soil did water drain fastest, and give a reason why. (2 marks)
51.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข Electricity
(a) State the difference between static electricity and current electricity.
(b) Describe how static charges are produced on a plastic ruler.
(c) State two safety precautions taken to protect tall school buildings against lightning strikes.
52.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Accidents and First Aid
(a) Why should a first aider never induce vomiting in a casualty who has swallowed paraffin or kerosene?
(b) What first aid should be given to a paraffin poisoning victim?
(c) How should a first aider manage a non-corrosive poisoning casualty?
53.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Science at Home and in Our Community
State the importance of the following steps in cleaning clothes at home:
(i) Sorting
(ii) Soaking
54.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Accidents and First Aid
(a) Name the kind of water recommended to be used when tepid sponging a casualty of high fever.
(b) State the scientific reason why the water mentioned in (a) is used instead of very cold water.
(c) Mention any two signs of dysentery in humans.
55.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข The Reproductive System
(a) Write down any two disorders that affect the male reproductive system.
(b) State any one advantage of child spacing to a mother in a family.
(c) Give any one reason why females are highly affected by HIV/AIDS during intercourse.
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