Science Questions and Answers KCPE 2022 Prediction Papers Set 3
Questions
Objects like wax, plastic and wood normally float on water. This is possible because of their?
Size
Material
Shape
Weight
To protect themselves from noise pollution, workers in noisy factories are provided with
Ear buds
Gas masks
Ear plugs
Ear phones
Which one of the following animal feeds is a source of proteins?
Lucerne
Grass
Molasses
Sweet potato vines
Cirrhosis is a disease of the liver which is commonly caused by excessive use of
smoking of tobacco
drinking of beer
chewing of miraa
inhaling of cobbler's glue
One of the following animal parasites cannot be controlled by drenching or dosing, which one is it?
Round worms
Lung worms
Liver fluke
Tsetse flies
Which one of the following substances have definite size and shape?
Wax and steam
Petrol and oxygen
Stone and glass
Milk and water
Study the diagram below of a simple rain gauge. The part marked T is placed underground mainly to
prevent evaporation of collected water
collect as much rain water as possible
make it durable
prevent the container from direct sunlight
Which one of the following is not an air pollution?
Loud music
Aerosal sprays
Excessive dust
Farm Yard Manure
In which one of the following pairs of levers is the fulcrum between the load and the effort when they are in use?
Wheelbarrow and space
Claw hammer and wheel barrow
Crow bar and spade
Crow bar and claw hammer
Which one of the following statements is true about platypus, bat, ostrich and toad. All of them
breath through lungs
give birth to young ones
have body temperatures that varies with the surrounding
spend part of their life on dry land
The following are ways in which plants adjust themselves to grow in various habitat:
Succulent
Flexible stems
Thick and waxy cuticles
Spongy stems
Needle-like leaves Which set of adjustments are for plants suitable to grow in dry areas?
ii.iv.v
i, iii,v
ii,iii, iv
ii,i,iv
Which one of the following is not correct statement about the force that opposes motion? The force
produces unwanted heat
increase the effort required for moving a load
makes the load lighter
can be reduced by using rollers.
The transfer of heat by convection is possible through
gases only
liquid and gases
solids and liquids
gases and vacuum
The diagram below shows an improved jiko. The part marked T is made of clay in order
make the jiko durable
make the charcoal light faster
reduce the space for charcoal
reduce the amount of heat loss
The following are characteristics of a certain type of cloud:
Flat-bottomed
High in the sky
White in colour Which statement below is true?
The characteristics are for nimbus clouds
The cloud gives rise to rainfall
The cloud also looks like mountains
This type of cloud also looks like bundles of cotton
Which of the following is not an excretory organ?
Kidney
Skin
Anus
Lungs
Class five pupils of Jamhuri Primary School did an experiment. They dropped some pieces of papers on burning flames of fire. What were they investigating?
Convection in liquid
Gases occupy space
Air in motion
Convection in gases
Which one of the following vaccine is correctly matched with when it is administered? Vaccine When administered
Vaccine
When administered
A
1st DPT
At birth
B
2nd Polio vaccine
10 weeks
C
3rd Hepatitis B
14 weeks
D
3rd DPT
14 weeks
Which one of the following components of the environment do plants and animals depend on directly for their survival?
Soil and water
Air and soil
Water and air
Air only
The amount of matter in a substance is measured using all the following units except
Grammes
Kilograms
Newtons
Tonnes
A certain weed was observed with the following characteristics
Purple flowers
Thorns on the stems
Yellow fruits when ripe The weed was likely to be
thorn apple
wandering jew
oxalis
sodom apple
Which of the following pair processes involves loss of heat to the surrounding?
Freezing and melting
Melting and evaporation
Freezing and condensation
Condensation and evaporation
Which one of the following practices is an economical way of using water?
Harvesting rain water
Mulching and shading
Constructing dams to collect rain run off water
Practising drip irrigation
The following are social effects of drug abuse except
truancy
lack of concentration
drug induced accidents
marital conflicts
In a food chain, which of the following organism is a secondary consumer?
Cabbage
Grasshopper
Hawk
Chicken
The following crop pests are correctly matched with the part of the crop they attack except Crop pest Part attacked Crop pest Part attacked
Stalk borer Stem
Army worm Leaves
Aphids Seeds
Cutworm Stems
Which of the following pollutes both water and soil?
Oil spillage
Controlled use of farm chemicals
Domestic wastage
Industrial waste gases
The chart below represents the characteristics of amphibians, fish and reptiles. What do N and O represent?
Laying eggs Warm blooded
Live in water Scales
Cold blooded Breath by lungs
Scales Cold blooded
As Mame Brian was chopping potatoes she cut her finger with a knife. Which component of blood helped to stop the bleeding?
Plasma
Platelets
White blood cells
Red blood cells
Which one is not a use of water in recreation?
Irrigation
Boat racing
Surfing
Swimming
Which one of the following is a nonluminous source of light?
Moon
Sun
Stars
Fire flies
The pie chart below shows a composition of air. Which letter represent the part used by premature born babies in incubators?
W
L
K
Q
Below are statements about second class levers. Which one is correct?
Load distance is equal to effort distance
Load distance is always greater than effort distance
Effort distance is always greater than load distance
Effort distance is always twice the load distance
Which one is not a minor plant nutrient?
Chlorine
Carbon
Iron
Manganese
Expectant mothers mainly feed on food rich in calcium and vitamin D for?
Help to prevent rickets to the foetus
Providing energy to the foetus
For proper bones formation of the foetus
For growth and development of the foetus
Which one of the following is observed in a container that has been used to boil hard water?
Scum
Bubbles
Fur
Soap deposits
The diagram below shows a glass which was put inside another glass and got stuck. What should be done to separate the two glasses?
Put the glasses into boiling water
Put hot water in the inner glass
Put the glass in cold water
Immerse the outer glass in hot water
A simple electric circuit should have the following except
bulb
fuse
wires
dry cells
The amount of space occupied by a body is its
mass
pressure
volume
weight
The diagram below shows a home-made water filter Which of layer represents charcoal?
J
K
L
M
The following are problems related to teeth except
bad breath
bleeding gums
dental floss
cavities
The following are ways of maintaining simple tools except
oiling
cleaning tools after use
sharpening cutting tools
using them regularly
Which one of the following livestock parasites attacks only the small intestines?
Hookworms
Lungworms
Tapeworms
Roundworms
Which of the following mixtures can be separated by dissolving, filtering and evaporation?
Iron fillings, flour and salt
Salt and sugar
Kerosene, water and turpe ntine
Sand and sugar
The diagram below represents a set up that is used to investigate a certain aspect of light. The aspect investigated is
light travels in a straight line
refraction
reflection
passage of light through materials
Large furrows in the soil indicate
rill erosion
gulley erosion
splash erosion
sheet erosion
Which one of the following helps us to drink using a straw?
Force of gravity
Adhesion
Capillarity
Air pressure
The best method of controlling human intestinal worms is by
deworming
vaccination
rotational grazing
proper sanitation
Standard four pupils set up the experiment shown below. The pupils concluded that pressure in liquids
increase with depth
decrease with height
is equal at the same height
is the same in all directions
A fish is able to remain a float on water even if it is not swimming due to the presence of
lateral line
air bladder
air sacs
fins
Marking Scheme
D
B
A
C
A
A
B
D
D
C
D
C
B
A
B
A
D
C
C
A
B
A
B
B
B
C
B
A
A
A
D
C
B
A
A
D
D
B
A
A
C
C
D
B
B
D
D
A
A
A
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Last modified on Wednesday, 31 August 2022 11:30