PAPER CODE: 532/1
MOCK REF: PLE-133809
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.
Name the main natural source of heat and light energy on earth. [1 mark]
P.4 โข Energy in the Environment
2.
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
3.
Identify the chemical substance used as a depolarizer in a standard dry Leclanchรยฉ cell. [1 mark]
P.7 โข Electricity
4.
Why are small gaps left between railway rails during track construction? [1 mark]
P.5 โข Heat Energy
5.
Why does prolonged hunger sometimes lead to fainting? [1 mark]
P.6 โข Accidents and First Aid
6.
How is tepid sponging useful to a casualty with high fever? [1 mark]
P.6 โข Accidents and First Aid
7.
State one way of preventing the spread of Tuberculosis (TB). [1 mark]
P.7 โข The Respiratory System
8.
State one reason why a torch may fail to produce light even when it is switched on. [1 mark]
P.7 โข Electricity
9.
State one way of preventing accidental drug poisoning in young children at home. [1 mark]
P.6 โข Accidents and First Aid
10.
State one reason why alcohol is preferred to mercury in minimum thermometers. [1 mark]
P.5 โข Heat Energy
11.
How does eating fresh oranges or lemons help prevent bleeding gums? [1 mark]
P.5 โข Food and Nutrition
12.
Give one reason why copper is the preferred metal for manufacturing electrical conducting cables in domestic installations. [1 mark]
P.7 โข Electricity
13.
Name any one element of Primary Health Care (PHC). [1 mark]
P.5 โข Primary Health Care (PHC)
14.
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
15.
State any one importance of evaporation in the environment or daily life. [1 mark]
P.5 โข Heat Energy
16.
What general term refers to cattle kept primarily for ploughing and pulling carts? [1 mark]
P.6 โข Keeping Cattle
17.
Name the structure on the head of a tapeworm used for attachment to the intestinal wall. [1 mark]
P.6 โข Classification of Animals
18.
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
19.
Why is an insect compelled to shed its outer covering periodically during growth? [1 mark]
P.7 โข The Muscular and Skeletal System
20.
State the condition that must be present for a shadow to be formed. [1 mark]
P.7 โข Light Energy
21.
Give any one psychological life skill that adolescent girls can develop to safeguard themselves against early teenage pregnancies. [1 mark]
P.6 โข The Reproductive System
22.
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
23.
State the fundamental law of electrostatics concerning like and unlike charges. [1 mark]
P.7 โข Electricity
24.
What is the color code of the earth wire in a modern standard three-pin plug? [1 mark]
P.7 โข Electricity
25.
Give one road safety practice for pedestrians crossing a busy road. [1 mark]
P.6 โข Accidents and First Aid
26.
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)
27.
State one nursery bed management practice done to harden off seedlings before transplanting. [1 mark]
P.5 โข Crop Growing
28.
How does chlorine make water safe for drinking? [1 mark]
P.6 โข Science at Home and in Our Community
29.
Why is it not advisable to burst blisters on a burnt part of the skin? [1 mark]
P.6 โข Accidents and First Aid
30.
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
31.
Name the deficiency disease caused by a severe lack of Vitamin C in the diet. [1 mark]
P.5 โข Food and Nutrition
32.
What happens when cooking oil is poured onto water in a glass? [1 mark]
P.5 โข Matter and Energy
33.
To which class of vertebrates do snakes and lizards belong? [1 mark]
P.5 โข Classification of Animals
34.
State the difference between sand soil and clay soil in terms of particle size. [1 mark]
P.4 โข Soil
35.
Name the type of optical lens that diverges light rays. [1 mark]
P.7 โข Light Energy
36.
State one reproductive similarity between bread moulds (fungi) and ferns (plants). [1 mark]
P.5 โข Fungi and Non-Flowering Plants
37.
Name the community health workers who act as a frontline bridge between the village and health centres in Uganda. [1 mark]
P.5 โข Primary Health Care (PHC)
38.
State one benefit of warming-up exercises to muscles before strenuous physical activities. [1 mark]
P.7 โข The Muscular and Skeletal System
39.
Give any one example of a dual-purpose or heavy poultry breed. [1 mark]
P.5 โข Keeping Poultry and Bees
40.
Give any one example of an external parasite (ectoparasite) that attacks cattle. [1 mark]
P.6 โข Keeping Cattle
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 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.
42.
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.
43.
Structured & Practical Assessment Item
[4 MARKS]
P.5 โข Types of Changes in the Environment
Classify each of the following changes taking place in the environment as either a physical, chemical, or biological change:
(a) Burning dry wood into ash (1 mark)
(b) Melting of ice into water (1 mark)
(c) Growth of a puppy into an adult dog (1 mark)
(d) Evaporation of water into steam (1 mark)
44.
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)
45.
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.
46.
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.
47.
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.
48.
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)
49.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Sanitation
(a) Give the difference between an Ordinary Pit Latrine and a VIP Latrine in terms of structural coverings.
(b) What material is used in an Ecosan latrine to dry human waste, and what is its role?
(c) State one major maintenance rule for a Water Closet (Flush Toilet) bowl.
50.
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)
51.
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?
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.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)
54.
Structured & Practical Assessment Item
[4 MARKS]
P.6 โข Sound Energy
Define the following scientific terms related to sound:
(a) Volume (1 mark)
(b) Pitch (1 mark)
(c) Frequency (1 mark)
(d) Echo (1 mark)
55.
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)
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