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Formation of a rainbow can be demonstrated by the following activities except when
A. Observing the sun through a horizontally-held transparent biro pen casing
B. Placing a mirror in water to face the sun
C. Spraying water in the air from the mouth in bright sunshine
D. Placing a biro pen casing on water in a glass container.
Date posted:
July 29, 2019
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A mixture of salt solution, maize grains and iron filings can be separated by
A. Filtering, Use of magnet, evaporation
B. Decanting, picking, winnowing
C. Filtering, decanting, evaporation
D. Winnowing, use of magnet, picking.
Date posted:
July 29, 2019
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Which one of the following pairs of processes are as a result of increase and decrease in temperature respectively?
Increase--------------- Decrease
A. Freezing ----------------condensation
B. Expansion-------------- evaporation
C. Contraction ------------expansion
D. Melting ---------------condensation
Date posted:
July 29, 2019
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Which one of the following components of air is used for preservation of soft drinks?
A. Carbon dioxide.
B. Nitrogen.
C. Oxygen.
D. Inert gases.
Date posted:
July 29, 2019
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The following are methods of maintaining simple tools:
(i) Cleaning after use
(ii) Proper storage
(iii) Sharpening cutting edges
(iv) Proper use of tools.
Which pair consists only of methods for safety from accidents?
A. (ii) and (iv).
B. (i) and (iv).
C. (ii) and (iii).
D. (i) and (iii).
Date posted:
July 29, 2019
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Which one of the following materials will not form a shadow when light is shone on it?
A. White paper.
B. Mirror.
C. Glass of a lamp.
D. Sheet of aluminium.
Date posted:
July 29, 2019
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To model the solar system, the following materials can be used:
(i) soft board
(ii) clay
(iii) pins
(iv) glue
(v) manila paper.
Which one of the following materials would be most suitable to use instead of the pins?
A. Wax.
B. Plasticine.
C. Pieces of barbed wire.
D. Pieces of cello tape.
Date posted:
July 29, 2019
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Which one of the following mixtures can be separated by either picking or sieving?
A. Maize and beans.
B. Rice and sorghum.
C. Maize and millet.
D. Green grams and peas.
Date posted:
July 29, 2019
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Which one of the following is an example of a harmful animal?
A. Turkey.
B. Donkey.
C. Termite.
D. Dog.
Date posted:
July 29, 2019
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The following materials can be used to construct a certain weather instrument:
(i) small plastic bottle
(ii) large plastic bottle
(iii) manila paper
(iv) cello tape.
The weather instrument likely to be constructed is
A. air thermometer
B. wind vane
C. rain gauge
D. liquid thermometer.
Date posted:
July 29, 2019
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Which one of the following is the most commonly abused drug in Kenya?
A. Khat.
B. Glue.
C. Tobacco.
D. Alcohol.
Date posted:
July 29, 2019
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In a certain activity, a sample of soil was mixed with water in a transparent container, shaken and allowed to settle. This was to investigate soil
A. drainage
B. fertility
C. composition
D. capillarity.
Date posted:
July 29, 2019
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Which one of the following methods will mainly conserve soil and not water?
A. Mulching.
B. Terracing.
C. Cover crops.
D. Gabions.
Date posted:
July 29, 2019
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Anaemia and irritation in livestock can be a sign of attack by
A. liver flukes
B. tapeworms
C. tsetse flies
D. round worms.
Date posted:
July 29, 2019
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Which one of the following components of air is correctly matched to its percentage?
Oxygen -Inert gases
A. 21 -78
B. 0.97 -0.03
C. 21 -0.97
D. 0.03 -78
Date posted:
July 29, 2019
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Which is the last stage in energy transformation when a kerosene stove is burning?
A. Chemical.
B. Heat.
C. Light.
D. Sound.
Date posted:
July 29, 2019
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The property of light used in the working of a lamp in a room is that light
A. Travels in a straight line
B. Spreads in all directions
C. Bends as it passes from one media to another
D. Forms shadows with opaque objects.
Date posted:
July 29, 2019
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Which one of the following materials works in the same way as frosted glass?
A. Sky light.
B. Mirror.
C. Clear water.
D. Car windscreen.
Date posted:
July 29, 2019
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The diagram below illustrates a jiko.
It is an improved jiko because the part labelled
A. J takes less charcoal.
B. K is made of clay
C. L is metallic.
D. M is closed.
Date posted:
July 29, 2019
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A child who appears old with a wrinkled face is also likely to.
A. lack blood
B. have swollen abdomen
C. have bow legs
D. cry often.
Date posted:
July 29, 2019
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Large furrows in the soil indicate
A. Rill erosion
B. Gulley erosion
C. Splash erosion
D. Sheet erosion.
Date posted:
July 29, 2019
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Which one of the following pairs of plants stores food in the roots?
A. Irish potato and cassava.
B. Cassava and carrot.
C. Onion and carrot.
D. Irish potato and onion.
Date posted:
July 29, 2019
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Which one of the following weeds has green-purple leaves?
A. Mexican marigold.
B. Blackjack.
C. Pig weed.
D. Sodom apple.
Date posted:
July 29, 2019
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Which one of the following diseases can be prevented by draining stagnant water around homesteads?
A. Tuberculosis.
B. Typhoid.
C. Cholera.
D. Malaria.
Date posted:
July 29, 2019
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Below is an illustration of a food chain.
Plant —> Antelope —> Lion —> Vulture
Tertiary consumers are represented by
A. plants.
B. antelope.
C. lion.
D. vulture.
Date posted:
July 29, 2019
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Which one of the following teeth problems can be prevented by feeding on a balanced diet?
A. Bleeding gums.
B. Dental cavities.
C. Bad smell.
D. Tooth decay.
Date posted:
July 29, 2019
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Which type of manure is common on dairy farms?
A. Green manure.
B. Compost manure.
C. Farmyard manure.
D. Organic mulches.
Date posted:
July 29, 2019
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The diagram below represents a single fixed pulley in use.
Which one of the following is NOT true about the pulley?
A. It reduces the effort applied.
B. Effort and load move through equal distances.
C. Makes work easier by changing direction of effort.
D. The wheel reduces friction.
Date posted:
July 29, 2019
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Pupils placed a bottle top on water and it floated. They then crushed and placed the same bottle top on the water again and it sunk. Which one of the following factors that affect sinking and floating was being investigated?
A. Size of the material.
B. Type of the material.
C. Shape of the material.
D. Mass of the material.
Date posted:
July 29, 2019
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Which one of the following components of the environment will be least affected when an oil pipe bursts? A. Air.
B. Water.
C. Soil.
D. Plants.
Date posted:
July 29, 2019