KCPE PAST PAPERS 2013: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]

​KCPE PAST PAPERS 2013: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]

Question 26.

Which pair of’ plants stores food in the roots?

• A. Sweet potato and carrot.
• B. Irish potato and arrow root.
• C. Carrot and Irish potato.
• D. Onions and cassava.

Question 27.

Which of the following groups of food crops is correctly classified into cereals, legumes and fruits?

Question 28.

The diagram below shows some parts of a flower.

The parts representing the stigma and filament are

• A. K and L
• B. L and N
• C. K and M
• D. N and M.

Question 29.

Which of the following food chains is correct’?

• A. Grass —> grasshopper —> goat.
• B. Maize —> mice —> snake.
• C. Sunflower —> butterfly —> rabbit.
• D. Grass —> antelope —> rhino.

Question 30.

Which of the following groups of animal feeds mainly provides a diet of proteins, carbohydrates and fats respectively?

• A. Desmodium, clover, sweet potato vines.
• B. Lucern, maize stalks. oats.
• C. Napier grass, sweet potato vines, maize stalks.
• D. Lucern, desmodium, napier grass.

Question 31.

Which of the following groups of foods would provide nutrients suitable for a child suffering from kwashiorkor?

• A. Sorghum, carrots, sweet potatoes.
• B. Oranges, Irish potatoes, sugar cane.
• C. Beef, peas, milk.
• D. Mangoes, arrowroots, spinach.

Question 32.

Bilharzia can be prevented by

• A. boiling water before drinking
• B. wearing gumboots when walking in stagnant water
• C. draining stagnant water from around the homestead
• D. covering latrines after use.

Question 33.

Which of the following uses of water are recreational only?

• A. Transport, cleaning, swimming.
• B. Cleaning, boat racing, mixing chemicals.
• C. Swimming, fishing, boat racing.
• D. Fishing, transport, mixing chemicals.

Question 34.

Which of the following statements about HIV infected persons is correct?

Infected persons

• A. can only be taken care of by health workers
• B. need to visit hospitals for cure
• C. should be provided with a balanced diet
• D. should be discouraged from playing with others.

Question 35.

Excessive use of herbicides and pesticides affect the soil by reducing the

• A. number of animals in the soil
• B. nutrients in the soil
• C. humus content in the soil
• D. water retention in the soil.

Question 36.

Which of the following parts of the human breathing system are both involved in cleaning. warming and moistening air?

• A. Diaphragm and trachea.
• B. Lungs and diaphragm.
• C. Nose and lungs.
• D. Trachea and nose.

Question 37.

Which of the following pairs of livestock parasite control methods can control liver flukes?

• A. Rotational grazing and deworming.
• B. Dipping and spraying of animals.
• C. Rotational grazing and spraying of animals.
• D. Deworming and dipping.

Question 38.

In which of the following are the characteristics of solids and liquids correctly matched?

Question 39.

Which of the following groups of objects consists of only objects that would sink in water?

• A. Piece of chalk, steel needle, cork.
• B. Nail, piece of glass, stone.
• C. Bottle top, nail, cork.
• D. Piece of chalk, plastic bottle, polythene bag.

Question 40.

The following are reasons for fitting a tap near the bottom of a tank except

• A. making gravitational force to act on water
• B. making water to flow faster
• C. to increase pressure
• D. to let all the water out.

Question 41.

The main reason why murram is placed on roads is to

• A. absorb rain water
• B. make the roads last longer
• C. increase grip with tyres
• D. make the roads more attractive.

Question 42.

Which of the following groups of products are correctly classified according to the farm animals producing them?

Question 43.

The following processes are involved in the formation of a zygote in plants

(i) Growth of pollen tube
(ii) Pollination
(iii) Fusion
(iv) Pollen tube breaks.
The correct order of the processes is

• A. (ii), (i), (iv), (iii)
• B. (i), (ii), (iv), (iii)
• C. (ii), (i), (iii), (iv)
• D. (iv), (i), (iii), (ii).

Question 44.

Which of the following only consists of energy giving foods?

• A. Lemon and honey.
• B. Butter and coconut.
• C. Eggs and fish.
• D. Bread and pineapple.

Question 45.

Which of the following statements describes soft water? Soft water

• A. is clear and clean
• B. requires a lot of soap for washing
• C. is safe for drinking
• D. ¡s water that has been boiled.

Question 46.

In an activity to investigate mixing of liquids, liquid P mixed with liquid Q. Liquid R did not mix with Liquid P and Q. Liquid R mixed with cooking oil.Which one of the following correctly represents liquids P, Q and R?

Question 47.

The diagram below represents a set up used to demonstrate a certain property of light.

Which one of the  following statements is CORRECT about the set up? Light is

• A. refracted from P to the eye
• B. reflected from Q to the eye
• C. refracted from Q to the eye
• D. reflected from P to the eye.

Question 48.

Which one of the following pairs of materials will pollute soil?

• A. Saw dust and artificial fertilizer.
• B. Plastics and artificial fertilizer.
• C. Wood ash and saw dust.
• D. Plastics and iron filings.

Question 49.

In a certain investigation pupils used a straight pipe to observe a candle flame. They then bent the pipe and observed again.

Which aspect of light was being investigated?

• A. Formation of shadows.
• B. Uses of light.
• C. Sources of light
• D. How light travels.

Question 50.

A pupil was blindfolded and asked to listen as a bell was rang from different positions.

Which aspect of sound was being investigated?

• A. Direction of sound.
• B. Effects of sound pollution.
• C. Loud and soft sounds.
• D. Meaning of special sounds.

MORE STD 8 REVISION RESOURCES

• FULL SET EXAMS FROM PLAYGROUP TO STANDARD 8
  https://drive.google.com/open?id=1cdxLC-nRPWN1S47IUQNNEB81Aoar4AaT
• DOWNLOAD MORE KCPE 2013 PAST PAPERS AND MARKING SCHEMES
  ​https://www.atikaschool.org/kcpe-past-papers-and-answer/kcpe-2013-past-papers-questions-answers-and-reports

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