PAPER CODE: 532/1
MOCK REF: PLE-443360
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.
What scientific term describes the direct change of a solid into a gas without melting into a liquid? [1 mark]
P.5 โข Types of Changes in the Environment
2.
Name any one excretory product eliminated by the human lungs. [1 mark]
P.7 โข The Excretory System
3.
State any one method used to identify individual livestock on a farm. [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
4.
Name the longest and strongest bone found in the human body. [1 mark]
P.7 โข The Muscular and Skeletal System
5.
Name the farm structure used to hold cattle or goats firmly during hand spraying, drenching, or vaccination. [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
6.
State one reason why alcohol is preferred to mercury in minimum thermometers. [1 mark]
P.5 โข Heat Energy
7.
State the condition that must be present for a shadow to be formed. [1 mark]
P.7 โข Light Energy
8.
Name the structure on the head of a tapeworm used for attachment to the intestinal wall. [1 mark]
P.6 โข Classification of Animals
9.
Which part of a mammalian tooth contains blood vessels and nerves? [1 mark]
P.4 โข The Teeth
10.
Name the movable joint found between the atlas and axis vertebrae in the neck. [1 mark]
P.7 โข The Muscular and Skeletal System
11.
What kind of water is recommended for use during tepid sponging, and why should very cold water be avoided? [1 mark]
P.6 โข Accidents and First Aid
12.
Name the insect vector that spreads River Blindness (Onchocerciasis) to humans. [1 mark]
P.4 โข Vectors and Diseases
13.
How can a person doing laundry prevent colored clothes from staining white clothes? [1 mark]
P.6 โข Science at Home and in Our Community
14.
State any one factor to consider when selecting a suitable site for an apiary. [1 mark]
P.5 โข Keeping Poultry and Bees
15.
State the role of anhydrous calcium chloride in the laboratory investigation of rusting. [1 mark]
P.5 โข Types of Changes in the Environment
16.
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
17.
State one reason why a torch may fail to produce light even when it is switched on. [1 mark]
P.7 โข Electricity
18.
Why is it recommended to use clean wood ash at a tip-tap facility when soap is not available? [1 mark]
P.5 โข Primary Health Care (PHC)
19.
State any one advantage of castrating male piglets not intended for breeding. [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
20.
What term refers to the meat obtained from an adult sheep? [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
21.
What is Primary Health Care (PHC)? [1 mark]
P.5 โข Primary Health Care (PHC)
22.
Why should a farmer select healthy and viable seeds before planting? [1 mark]
P.5 โข Crop Growing
23.
State any one element of Primary Health Care. [1 mark]
P.5 โข Primary Health Care (PHC)
24.
Why does sound travel fastest in solids compared to liquids and gases? [1 mark]
P.6 โข Sound Energy
25.
Why are goats ear tagged or ear notched on a livestock farm? [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
26.
Give one road safety practice for pedestrians crossing a busy road. [1 mark]
P.6 โข Accidents and First Aid
27.
State the function of hooks and suckers on the scolex of a tapeworm. [1 mark]
P.6 โข Classification of Animals
28.
Give any one example of an emotional change in adolescents. [1 mark]
P.6 โข The Reproductive System
29.
Name the deficiency disease caused by a severe lack of Vitamin C in the diet. [1 mark]
P.5 โข Food and Nutrition
30.
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
31.
Why is the floor of a modern pigsty built with a gentle slope towards the drainage channel? [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
32.
Give any two examples of water impurities. [1 mark]
P.6 โข Science at Home and in Our Community
33.
Give any one role of water during seed germination. [1 mark]
P.5 โข Plant Life
34.
To which class of vertebrates do tortoises and chameleons belong? [1 mark]
P.5 โข Classification of Animals
35.
Name the parasitic disease that affects the ears of domestic rabbits. [1 mark]
P.5 โข Keeping Rabbits
36.
State the exact part of the female reproductive system where fertilization takes place. [1 mark]
P.6 โข The Reproductive System
37.
Name any one element of Primary Health Care (PHC). [1 mark]
P.5 โข Primary Health Care (PHC)
38.
Why are small gaps left between railway rails during track construction? [1 mark]
P.5 โข Heat Energy
39.
State one way in which food can get contaminated with disease-causing germs in a home. [1 mark]
P.5 โข Food and Nutrition
40.
Give one reason why food should be chewed properly before swallowing. [1 mark]
P.5 โข The Digestive System
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 Sanitation
(a) State any two poor sanitation conditions in a school compound that can encourage the breeding of disease vectors. (2 marks)
(b) Name any two vector-borne or water-borne diseases that can break out as a result of the poor conditions in (a). (2 marks)
42.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข The Muscular and Skeletal System
(a) Mention two connective tissues found at a movable joint in the human skeleton.
(b) State the difference in function between a tendon and a ligament.
(c) State any two ways in which friction is reduced at a movable joint.
43.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Sanitation
(a) Outline the three correct scientific steps followed when preparing Oral Rehydration Solution (ORS) locally at home. (3 marks)
(b) State the importance of administering ORS to a child suffering from severe diarrhoea. (1 mark)
44.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Science at Home and in Our Community
Name the step used in cleaning clothes that:
(a) Removes excess water from the clothes.
(b) Removes soapy water from the washed garments.
45.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข The Reproductive System
Match the reproductive structures in Part A with their correct physiological functions in Part B:
Epididymis
Scrotum
Cervix
Vas deferens
46.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Types of Changes in the Environment
A Primary 5 pupil heated a tin can with water, sealed it tightly, and poured cold water on it.
(a) What happened to the tin can? (1 mark)
(b) Explain why that happened to the can. (2 marks)
(c) Which physical state transition occurred inside the can? (1 mark)
47.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข The Muscular and Skeletal System
(a) What is a fracture?
(b) Distinguish between a simple fracture and a compound fracture.
(c) Give the main function of each of the following first aid items:
(i) Splints
(ii) Arm sling
48.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Science at Home and in Our Community
The diagram below shows a simple water purification system. Study and use it to answer the questions that follow:
Swampy water รขโโฌรขโโฌรขโยบ Filtered รขโโฌรขโโฌรขโยบ Point W รขโโฌรขโโฌรขโยบ Stored in the jerrycan
(a) Name any one activity that can be done to water at Point W.
(b) Why is swampy water filtered before being taken to Point W?
(c) State the importance of passing water through Point W.
(d) Mention any one other activity that can be done to swampy water before being taken to Point W to make it clear.
49.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Keeping Goats, Sheep, and Pigs
Livestock breeds have different commercial adaptations:
(a) Name the exotic goat breed kept primarily for high milk production. (1 mark)
(b) Which sheep breed is world-famous for producing fine wool? (1 mark)
(c) Give any two reasons why local indigenous goats like the Small East African goat are preferred by subsistence farmers. (2 marks)
50.
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.
51.
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.
52.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข 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)
53.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Classification of Animals
(a) State the name of insects that live and work together.
(b) Give any one way in which insects are useful to people.
(c) State any two human activities that are dangerous to insects in the environment.
54.
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)
55.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข 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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