PAPER CODE: 532/1
MOCK REF: PLE-816560
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.
Mention any two environmental conditions necessary for viable seeds to germinate. [1 mark]
P.5 โข Plant Life
2.
Why is it not advisable to give a convulsing or fainted person food to eat or water to drink? [1 mark]
P.6 โข Accidents and First Aid
3.
State the structural adaptation of incisor teeth to their function. [1 mark]
P.4 โข The Teeth
4.
Why is water obtained by the distillation method not recommended for drinking at home? [1 mark]
P.6 โข Science at Home and in Our Community
5.
What is meant by the term annual crops? [1 mark]
P.5 โข Crop Growing
6.
Give any one example of a dual-purpose or heavy poultry breed. [1 mark]
P.5 โข Keeping Poultry and Bees
7.
Why is a pregnant mother advised to eat plenty of food rich in iron? [1 mark]
P.5 โข Food and Nutrition
8.
State any one element of Primary Health Care. [1 mark]
P.5 โข Primary Health Care (PHC)
9.
Name the disorder of the skeletal system where a bone moves away from its normal position at a joint. [1 mark]
P.7 โข The Muscular and Skeletal System
10.
What general term refers to cattle kept primarily for ploughing and pulling carts? [1 mark]
P.6 โข Keeping Cattle
11.
To which class of vertebrates do tortoises and chameleons belong? [1 mark]
P.5 โข Classification of Animals
12.
State one way in which food can get contaminated with disease-causing germs in a home. [1 mark]
P.5 โข Food and Nutrition
13.
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
14.
State one nursery bed management practice done to harden off seedlings before transplanting. [1 mark]
P.5 โข Crop Growing
15.
What is meant by non-renewable energy resources? [1 mark]
P.7 โข Energy Resources in the Environment
16.
Name any one type of latrine. [1 mark]
P.6 โข Sanitation
17.
State any one danger of hanging colored clothes under direct sunshine for a long time to dry. [1 mark]
P.6 โข Science at Home and in Our Community
18.
Mention any one personal hygiene practice that prevents bad body odour. [1 mark]
P.6 โข Personal Hygiene
19.
What term refers to the meat obtained from an adult sheep? [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
20.
State the function of the U-trap in a water closet (flush toilet). [1 mark]
P.6 โข Sanitation
21.
Give any one danger of rusting to a school farmer's tools. [1 mark]
P.5 โข Types of Changes in the Environment
22.
Give any one reason why a residential living house should have large windows on opposite walls. [1 mark]
P.5 โข Primary Health Care (PHC)
23.
How does chlorine make water safe for drinking? [1 mark]
P.6 โข Science at Home and in Our Community
24.
Name the structure on the head of a tapeworm used for attachment to the intestinal wall. [1 mark]
P.6 โข Classification of Animals
25.
In which method of making water clean do you first allow the impurities to settle at the bottom of a container? [1 mark]
P.6 โข Science at Home and in Our Community
26.
Name the type of optical lens that diverges light rays. [1 mark]
P.7 โข Light Energy
27.
State one reason why a torch may fail to produce light even when it is switched on. [1 mark]
P.7 โข Electricity
28.
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
29.
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
30.
Give one reason why copper is the preferred metal for manufacturing electrical conducting cables in domestic installations. [1 mark]
P.7 โข Electricity
31.
What is the color code of the earth wire in a modern standard three-pin plug? [1 mark]
P.7 โข Electricity
32.
Name any one living thing that undergoes moulting in the environment. [1 mark]
P.5 โข Types of Changes in the Environment
33.
Why does sound travel fastest in solids compared to liquids and gases? [1 mark]
P.6 โข Sound Energy
34.
State the fundamental law of electrostatics concerning like and unlike charges. [1 mark]
P.7 โข Electricity
35.
Why is the chin lifted backwards when giving First Aid to an unconscious casualty? [1 mark]
P.6 โข Accidents and First Aid
36.
State any one advantage of castrating male piglets not intended for breeding. [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
37.
State the function of a ligament at a movable joint. [1 mark]
P.7 โข The Muscular and Skeletal System
38.
Why are goats ear tagged or ear notched on a livestock farm? [1 mark]
P.5 โข Keeping Goats, Sheep, and Pigs
39.
What happens when cooking oil is poured onto water in a glass? [1 mark]
P.5 โข Matter and Energy
40.
State one structural adaptation of a coconut fruit for water dispersal. [1 mark]
P.5 โข Plant Life
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 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.
42.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข Electricity
(a) Draw schematic circuit symbols for:
(i) A cell
(ii) An open switch
(b) State two advantages of connecting domestic lights in parallel rather than in series.
43.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข Light Energy
When white light passes through a triangular glass prism, it splits into a spectrum of seven colors:
(a) Name the first and last colors of the visible light spectrum: (i) Color between red and yellow (1 mark), (ii) Color with the shortest wavelength at the bottom (1 mark)
(b) Why do the different colors of white light refract at different angles through the prism? (1 mark)
(c) How is a natural rainbow formed in the sky? (1 mark)
44.
Structured & Practical Assessment Item
[4 MARKS]
P.7 โข Electricity
The diagram represents a simple dry cell:
(a) Name the parts marked:
(i) Outer metal casing
(ii) Central black rod
(b) What is the function of the ammonium chloride paste?
(c) Why does a dry cell eventually lose power (go flat)?
45.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Science at Home and in Our Community
(a) What is meant by the term silting?
(b) State the major cause of silting in water bodies.
(c) Apart from killing fish, give one way in which silting affects aquatic life.
46.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Sound Energy
(a) Mention any one example of musical instruments in each of the groups below:
(i) String instrument
(ii) Percussion instrument
(b) Name any two methods of storing sound.
47.
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.
48.
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)
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.7 โข Simple Machines
(a) Name the simple machine used in a windlass (water winch) for drawing water from deep wells. (1 mark)
(b) State two other practical uses of the machine named in (a). (2 marks)
(c) Name the opposing force that resists motion in simple machines. (1 mark)
51.
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.
52.
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.
53.
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)
54.
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)
55.
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.
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