PAPER CODE: 532/1
MOCK REF: PLE-461244
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.
State the function of hairs (cilia) and mucus inside the human nostrils. [1 mark]
P.7 โข The Respiratory System
2.
Why does prolonged hunger sometimes lead to fainting? [1 mark]
P.6 โข Accidents and First Aid
3.
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
4.
What is the color code of the earth wire in a modern standard three-pin plug? [1 mark]
P.7 โข Electricity
5.
Give any one example of an external parasite (ectoparasite) that attacks cattle. [1 mark]
P.6 โข Keeping Cattle
6.
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
7.
State any one element of Primary Health Care. [1 mark]
P.5 โข Primary Health Care (PHC)
8.
State one way in which people can conserve non-renewable energy resources. [1 mark]
P.7 โข Energy Resources in the Environment
9.
How does boiling make water safe for drinking? [1 mark]
P.6 โข Science at Home and in Our Community
10.
How does painting an iron gate prevent it from rusting? [1 mark]
P.5 โข Types of Changes in the Environment
11.
Mention one way in which you can prevent some clothes from staining others during washing. [1 mark]
P.6 โข Science at Home and in Our Community
12.
State any one danger of cigarette smoking to the human respiratory system. [1 mark]
P.7 โข The Respiratory System
13.
Name the type of optical lens that diverges light rays. [1 mark]
P.7 โข Light Energy
14.
Name the parasitic disease that affects the ears of domestic rabbits. [1 mark]
P.5 โข Keeping Rabbits
15.
Why is the drop hole of a VIP latrine left open without a lid at all times? [1 mark]
P.6 โข Sanitation
16.
Name any one excretory product eliminated by the human lungs. [1 mark]
P.7 โข The Excretory System
17.
In an electric circuit diagram, which instrument is always connected in series to measure electric current? [1 mark]
P.7 โข Electricity
18.
State one reproductive similarity between bread moulds (fungi) and ferns (plants). [1 mark]
P.5 โข Fungi and Non-Flowering Plants
19.
Give any two examples of root tuber crops. [1 mark]
P.5 โข Crop Growing
20.
Name two methods of obtaining clean water for washing at home. [1 mark]
P.6 โข Science at Home and in Our Community
21.
Why is it not advisable to burst blisters on a burnt part of the skin? [1 mark]
P.6 โข Accidents and First Aid
22.
State any one function of the diaphragm during the process of breathing. [1 mark]
P.6 โข The Respiratory System
23.
Name the part of an insect used for balancing during flight. [1 mark]
P.6 โข Classification of Animals
24.
Give one safety measure to prevent electric shock in a domestic home. [1 mark]
P.6 โข Accidents and First Aid
25.
Why should a farmer select healthy and viable seeds before planting? [1 mark]
P.5 โข Crop Growing
26.
Name the movable joint found between the atlas and axis vertebrae in the neck. [1 mark]
P.7 โข The Muscular and Skeletal System
27.
What general term refers to cattle kept primarily for ploughing and pulling carts? [1 mark]
P.6 โข Keeping Cattle
28.
Identify one airborne bacterial disease that affects the human skeleton. [1 mark]
P.7 โข The Muscular and Skeletal System
29.
Give any one function of proteins in the human body. [1 mark]
P.4 โข Food and Nutrition
30.
State the scientific function of soap in cleaning clothes. [1 mark]
P.6 โข Science at Home and in Our Community
31.
Give any one danger of rusting to a school farmer's tools. [1 mark]
P.5 โข Types of Changes in the Environment
32.
What is meant by the term balanced diet? [1 mark]
P.5 โข Food and Nutrition
33.
Name the structure on the head of a tapeworm used for attachment to the intestinal wall. [1 mark]
P.6 โข Classification of Animals
34.
Give any one biological change that takes place in flowering plants. [1 mark]
P.5 โข Types of Changes in the Environment
35.
State the function of hooks and suckers on the scolex of a tapeworm. [1 mark]
P.6 โข Classification of Animals
36.
State the function of the U-trap in a water closet (flush toilet). [1 mark]
P.6 โข Sanitation
37.
State the fundamental law of electrostatics concerning like and unlike charges. [1 mark]
P.7 โข Electricity
38.
Why does sound travel fastest in solids compared to liquids and gases? [1 mark]
P.6 โข Sound Energy
39.
Why is an electric fuse constructed using a wire with a low melting point? [1 mark]
P.7 โข Electricity
40.
What is meant by the term annual crops? [1 mark]
P.5 โข Crop Growing
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.6 โข Science at Home and in Our Community
(a) Name one plant material from which local salt can be prepared at home.
(b) State the physical method used to prepare local salt from ash.
(c) Give any two ways in which the local salt prepared at home is useful to people.
42.
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)
43.
Structured & Practical Assessment Item
[4 MARKS]
P.4 โข Vectors and Diseases
(a) Name the insect vector that spreads Sleeping Sickness (Trypanosomiasis) to humans. (1 mark)
(b) Which developmental stage of a housefly causes food contamination? (1 mark)
(c) What do adult female tsetse flies and female anopheles mosquitoes feed on? (1 mark)
(d) How does an infected mosquito transmit malaria parasites to humans? (1 mark)
44.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Keeping Goats, Sheep, and Pigs
Measly pork is a serious public health problem in Uganda:
(a) What causes measly pork in pigs? (1 mark)
(b) Name the parasite whose larvae cause this condition. (1 mark)
(c) State any two ways a community can prevent tapeworm transmission from pigs to humans. (2 marks)
45.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Food and Nutrition
Vulnerable groups have special dietary requirements:
(a) Why is a convalescent person classified as a vulnerable individual? (1 mark)
(b) Which class of food should be increased in a convalescent's diet? (1 mark)
(c) State the nutritional role of dietary roughage in human digestion. (1 mark)
(d) Name any one local food source rich in dietary roughage. (1 mark)
46.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข The Muscular and Skeletal System
(a) Name the two voluntary muscles found in the human upper arm.
(b) Give any one function of muscles in the human body.
(c) State any one importance of maintaining correct body posture in humans.
47.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Classification of Animals
(a) State any two general characteristics of amphibians. (2 marks)
(b) Give two differences between fish and adult amphibians. (2 marks)
48.
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)
49.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Accidents and First Aid
(a) State the difference between drowning and near drowning.
(b) Give any two common causes of near drowning.
(c) State any one way you can help save a near-drowned casualty.
50.
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)
51.
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?
52.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Keeping Goats, Sheep, and Pigs
A farmer noticed his goats were limping and producing a bad smell from their hooves:
(a) Which livestock disease is the farmer's herd likely suffering from? (1 mark)
(b) State the environmental condition in the goat pen that promotes this disease. (1 mark)
(c) Outline any two measures the farmer should take to control this disease. (2 marks)
53.
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)
54.
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.
55.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข The Circulatory System
(a) Name the main blood vessel that brings deoxygenated blood from body tissues to the right atrium of the heart. (1 mark)
(b) Which type of blood is carried by the pulmonary vein? (1 mark)
(c) State any two structural adaptations of arteries to their function. (2 marks)
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