Science Questions and Answers KCPE 2022 Prediction Papers Set 4
Questions
Which one of the following is not a function of the amniotic fluid?
Allows for the free movement of the foetus.
Prevents the foetus from shock.
Moistens the foetus.
Provides food nutrients to the foetus.
Which of the following is not a sexually transmitted infection?
Bilharzia
Chancroid
Syphilis
Gonorrhea.
Blood from the lungs enters the heart through the
aorta
pulmonary artery
vena cava
pulmonary vein
Which of the following crop pests makes large holes in leaves?
Weevils
Weaver birds
Aphids
Cutworms.
The following are some of the effects of drug abuse.
Unconsciousness
Brain damage.
Poor relationship with family members.
Rape. Which pair consists of the social effects of drug abuse?
(i) and (iii)
(i) and (ii)
(iii) and (iv)
(ii) and (iv)
Which of the following parts of the reproductive system produces sex cells?
Vagina and penis.
Testis and ovary.
Uterus and urethra.
Oviduct and penis
The diagram below shows parts of a bean seed. Which letter represents the seed leaves?
M
L
N
O
The chart below shows classification of plants. Which group of plants were wrongly classified?
Carrot, kales, wandering jew
Kales, bananas, fern.
Fir, banana, fern.
Wandering jew, carrot, fir.
During a Science practical lesson, class six pupils put maize seeds in boiled water and added to it a layer of cooking oil. What condition necessary for germination were they investigating?
Warmth
Moisture
Light
Air.
Mass is measured using a
spring balance
newton
standard weight
weighing scale
Which one of the following is not a living component of the environment?
Earthworms
Cactus
Water
Bacteria.
Class four pupils put soil in a clear container and added water. They stirred the mixture then left it to settle. They investigated all the following components except
air
mineral particles
water
organic matter
The diagram below shows a compost heap. Which letter represents the layer that consists of the old compost manure?
Y
X
W
Z
A mixture of husks and maize flour can be best separated by
filtering
sieving
winnowing
decanting.
What is the total percentage of the two gases used by plants to make food?
1.0%
78.03%
21.03%
99%
The diagram below shows a simple tool. Which pair of letters represents parts on which friction has to be increased for the lever to work effectively?
G and E
F and E
G and H
J and F
Rollers are used to
reduce the weight of an object
reduce the force that hinders motion
increase the friction of an object
reduce the mass of an object
Which one of the following is the third step when modelling the solar system?
Pasting manila paper on the soft board.
Modelling the sun and the planets.
Drawing circles to represent the orbit.
Pasting name tags against each planet.
The diagram below shows a simple weather instrument. The weather instrument above works under the principle that
air exerts pressure
air is a good conductor of heat
liquids contract when cooled
matter expands when heated.
Which one of the following is not an effect of parasites on livestock?
Irritation.
Poor quality products.
Increased appetite.
Anaemia.
Which one of the following is the most expensive method of grazing?
Strip grazing.
Herding
Paddocking.
Stall feeding.
The following are signs and symptoms of certain water-borne diseases.
Blood in urine and faeces
Muscular pains.
Red spots on the chest.
Itching at the anus. Which ones are not signs of typhoid?
(ii) and (iii)
(i) and (iv)
(ii) and (iv)
(i) and (iii)
Which of the following methods of food preservation works the same way as use of honey?
Smoking
Refrigeration
Salting
Drying.
Which one of the following is a common characteristic in rat, duck and gecko?
They lay eggs.
Their bodies are covered with scales.
They have constant body temperature
They breathe through lungs.
After fertilization, all the following parts of a flower dries up except the
style
petals
sepals
stigma.
Which of the following is not an immunizable disease?
Hepatitis B
Bilharzia
Measles
Tuberculosis
The following are importance of taking a HIV test except that it helps
in administering proper treatment
to know one’s status
in behavioural change
to overcome fear.
Which one of the following food nutrients is not absorbed in the intestine?
Fats and oils.
Carbohydrates
Proteins
Calcium.
Standard six pupils poured water on a flat soil surface. They used a bottle which had a hole in the lid as shown below. Which type of erosion were they likely to be investigating?
Rill erosion
Gulley erosion
Splash erosion
Sheet erosion.
In a convection box, a burning candle is mainly used to
produce smoke
light the box
warm the air
colour the air.
Which one of the following is a poor conductor of electricity?
Pencil
Razor blade
Copper iron
Marble.
All the following animals have the same way of movement except
scorpion
cockroach
ant
chicken.
Which of the following liquids are correctly classified?
Immiscible
Miscible
A
Petrol, cooking oil
Spirit, diesel
B
Milk, kerosene
Ink, water
C
Water, milk
Spirit, kerosene
D
Petrol, ink
Diesel, milk
Water vapour has definite
density
mass
volume
shape.
Two pieces of stones were placed in tins and balanced on a see-saw as shown below. What is likely to happen if stone J is broken into small pieces?
K will move upwards.
J will move downwards.
The see-saw will tilt towards K.
There will be no change
Which one of the following is the best way of controling both external and internal livestock parasites?
Clearing bushes around the farm.
Practising rotational grazing.
Deworming.
Dipping and spraying.
All the following are characteristics of cumulus clouds except that they
indicate fine weather
appear low in the sky
have flat base
look like bundles of cotton wool.
The following are all excretory products except
excess salt
lactic acid
faeces
carbon dioxide.
Which of the following water pollutants is likely to increase the growth of water weeds?
Oil spillage.
Floods.
Excess farm chemicals.
Raw industrial sewage.
The diagram below shows parts of the skin. Which letter represents the part that produces sweat?
H
G
E
F
A patient with pale eyes and rapid heartbeat should take a diet rich in
calcium
iron
proteins
fibres and water.
Which of the following animal feeds is not suitable to use as pasture?
Desmodium
Napier grass
Lucerne
Kikuyu grass
A mouse was seen basking in the sun. It is true to say that the body temperature of the mouse
rose
dropped
dropped and then rose steadily
did not change.
Which one of the following is not a fibre crop?
Sunflower
Sisal
Cotton
Flax
Which one of the following is not true about the first stage of HIV infection?
It has no visible signs.
The patient has no AIDS.
HIV shows positive results.
It is most dangerous stage.
Which one of the following is not a function of the largest component of blood?
Maintains blood pressure.
Suspends red blood cells.
Transports waste products.
Helps in clotting of blood.
The following materials are needed when investigating refraction of light except
pencil
water
mirror
coin.
Which one of the following is not a source of heat?
Moon
Sun
Electricity
Gas.
Which of the following groups of materials cannot sink in water?
Marble, feathers and paper.
Stone, rice and pin.
Leaf, bottle and wire.
Wood, leaf and rubber.
Class five pupils placed a glass full of ice cubes in the sun. Which of the following processes did not take place after some time?
Melting.
Expansion.
Evaporation.
Condensation.
Marking Scheme
D
A
D
C
C
B
A
B
D
D
C
C
D
C
B
D
B
C
D
C
D
B
A
D
C
B
A
D
C
C
D
A
B
B
D
B
B
C
B
A
B
B
D
A
C
D
C
A
D
D
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Last modified on Thursday, 01 September 2022 06:53