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2/9/2019

KCPE PAST PAPERS 2007: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]

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KCPE PAST PAPERS 2007: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]

26.

Which one of the following pairs of processes ia as a result of increase in temperature?

A. Melting and evaporation
B. Condensation and freezing
C. Condensation and evaporation
D. Melting and freezing

27.

The diagram below show a set up that was used to demonstrate a certain property of matter.

The coloured water rises up the straw because

A. Liquids expand when heated
B. Liquids occupy space
C. Air occupies space
D. Air expands when heated

28.

A sufuria made up of steel weighing 1000g floats on water while a nail made of iron weighing 50g sinks.

This is because of difference in:

A. Type of material
B. Shape
C. Volume
D. Mass

29.

Which of the following material will NOT be required in an experiment to show that pressure in a liquid increase with depth?

A. Tin can
B. Water
C. Nail
D. Collecting jar

30.

The diagram below represents a circuit that can be used to make a temporary magnet.

The energy transformation that occurs at the section marked P is

A. Electrical____ magnetic
B. Chemical ____ electrical
C. Heat _____ electricity
D. Chemical ____ magnetic

31.

The following are forms of energy

i. Heat
ii. Electricity
iii. Light
iv. Sound

The two forms of energy that DO NOT require a medium for transmission are

A. (ii) and (iv)
B. (i) and (iii)
C. (i) and (ii)
D. (iii) and (iv)

32.

The following practices help to conserve energy:

i. Using improved firewood jikos
ii. Switching off light that use hydro-electric power when not needed
iii. Using public transport whenever possible
iv. Using biogas for cooking

Which Two practice conserve non- renewable source of energy?

A. (i) and (ii)
B. (ii) and (iii)
C. (ii) and (iv)
D. (iii) and (iv)

33.

Which of the following is a recommended practice to avoid being struck by lighting?

A. Sheltering under tree
B. Using an umbrella when in an open field
C. Sheltering while leaning on a wall
D. Wearing rubber shoes with thick soles

34.

Which one of the following group consists of only foodstuff that are used for body buiding and repair?

A. Rice, orange, meat
B. Wheat, fish, maize
C. Beans, potatoes, groundnuts
D. Eggs, peas, milk

35.

The function of fibre in the human diet is to

A. Provide the body with nutrients
B. Transport digested food
C. Prevent constipation
D. Help in digestion of food

36.

Which one of following statements is NOT TRUE about the force that opposes movement the force

A. Can be reduced by streamlining
B. Makes the load heavier
C. Increase effort required to move the load
D. Produce heat

37.

A farmer noticed small and shallow channels forming in the soil in the garden due to running water. This type of soil erosion is called

A. Splash
B. Rill
C. Sheet
D. Gulley

38.

Which one of the following plants is a cereal?

A. Millet
B. Coffee
C. Sunflower
D. Peas

39.

Which one of the following consists of a pair plants that CANNOT make their own food?

A. Fern and pine
B. Toadstool and moss
C. Puffball and mould
D. Cedar and yeast

40.

Which one of the following pairs of parasites can be controlled by spraying?

A. Ticks and fleas
B. Liver flukes and tsetse flies
C. Fleas and liver flukes
D. Ticks and tapeworms

41.

Which one of the following sources of electricity pollutes the environment?

A. Geothermal
B. Wind-driven generators
C. Hydro-electric generators
D. Petrol-driven generators

42.

Which one of the following is a natural way of lighting a house ? using a

A. Candle
B. Torch
C. Hurricane lamp
D. Transparent roof

43.

Which one of the following components is found in all environments?

A. Plants
B. Soil
C. Air
D. Water

44.

Which one of the following groups of methods can be used to separate solid mixtures only?

A. Sieving, picking, winnowing
B. Picking, use of magnet, decanting
C. Winnowing, sieving, filtration
D. Use of magnet, filtration
E. Use of magnet, filtration, decanting

45.

Which one of the following DOES NOT function the same way as a bicycle dynamo when used to produce electricity?

A. Hydro-electric generator
B. Car battery
C. Diesel generator
D. Wind driven turbines

46.

The diagram below represent a simple machine.

Which of the position labelled P,Q and R would represent the load, effort and function when the machine is in use?
Load effort fulcrum

A. P Q R
B. R P Q
C. Q P R
D. R Q P

47.

The diagram below represents a block of wood being pushed along pushed a surface towards point X

Which one of the arrows represents the direction of the force of friction?

A. J
B. K
C. L
D. M

48.

Which one of the following consists of only material that are ALL non-magnetic?

A. Aluminium foil, a shilling coin
B. Iron nails, staple pins
C. Metal scissors, steel wool
D. Piece of glass, sewing needle

49.

The reason why coloured water is used in the construction of a liquid thermometer is to

A. Make it visible
B. Make it expand faster
C. Make it absorb more heat
D. Increase its density

50.

Which one of the following is the largest planet?

A. Mercury
B. Saturn
C. Jupiter
D. Earth

ANSWERS

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28/8/2019

KCPE PAST PAPERS 2006: SCIENCE QUESTIONS AND ANSWERS [25-50]

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COURTESY OF ATIKA SCHOOL

KCPE PAST PAPERS 2006: SCIENCE QUESTIONS AND ANSWERS [25-50]

26.

A pupil investigating a certain aspect of pressure in a liquid used a setup shown in the diagram below

What conclusion could the pupil make from the investigation?

A. Air exerts pressure on the surface of a liquid
B. Pressure in a liquid increases with depth
C. Pressure in a liquid is equal at the same depth
D. Pressure in a liquid is exerted on the sides only

27.

The temperature at which a substance freezes is the same temperature at which the substance

A. Condenses
B. Evaporates
C. Boils
D. Melts

28.

Which one of the following consists of only substances that have no definite shape but have definite volume?

A. Stone, kerosene, carbon dioxide
B. Oil, toothpaste, glue
C. Clay, flour, cement
D. Nitrogen, oxygen, water vapour

29.

The diagram below represents a setup that can be used to demonstrate heat transfer in air

For the demonstration to work a burning candle must be placed at

A. P
B. Q
C. R
D. S

30.

The percentage of the component of air that is fixed by bacteria in root nodules to make nutrients for the plant is

A. 0.03%
B. 0.97%
C. 21%
D. 78%

31.

Which one of the following is the last step when separating a mixture of sand and salt?

A. Dissolving
B. Filtering
C. Evaporating
D. Decanting

32.

The diagram below shows a stone being thrown using a catapult

The form of energy in the rubber band before the stone is released is

A. Kinetic
B. Potential
C. Chemical
D. Sound

33.

Which one of the following is CORRECT about a solar heater? A solar heater changes

A. Heat energy to electrical energy
B. Light energy to electrical energy
C. Chemical energy to heat energy
D. Light energy to heat energy

34.

Tall buildings are fitted with sharp pointed metal rods at their tops and connected to the ground. The rods are for

A. Protecting the buildings against lightning
B. Protecting electricity users from being electrocuted
C. Fixing aerials for radios and televisions
D. Allowing expansion of walls during hot weather

35.

Which one of the following is TRUE about the rainbow? It forms

A. Before heavy rainfall
B. When it rains while the sun is shining
C. When the sky is covered with thick clouds
D. When it rains in the afternoon

36.

Which one of the following energy transformations take place when a radio that uses cells is operating?

37.

Which one of the following sources of energy DOES NOT contain chemical energy?

A. Car battery
B. Bicycle dynamo
C. Food
D. Firewood

38.

Heat reaches the feet of a person seated by the side of a fire by

A. Conduction and convection
B. Radiation only
C. Convection only
D. Radiation and convection

39.

Which one of the following DOES NOT pollute the air?

A. Exhaust gases from aeroplanes
B. Smoke from burning charcoal
C. Smoke from burning domestic wastes
D. Gases from decaying animals

40.

The main reason why it is advisable to spray crops in the direction of wind is to avoid

A. The chemicals getting into contact with the skin
B. Wastage of chemicals
C. Polluting the air
D. Inhaling the chemicals

41.

The following signs and symptoms were observed in a certain child

(i) Thin and weak
(ii) Wrinkled face
(iii) Pot bellied
(iv) Hungry and crying a lot

The child was most likely suffering from

A. Anaemia
B. Rickets
C. Kwashiokor
D. Marasmus

42.

Which one of the following groups consists only of foodstuffs that protect the body against diseases?

A. Lemon, cabbage, carrot
B. Beans, groundnuts, fish
C. Maize, potatoes, rice
D. Meat, oranges, spinach

43.

The purpose of salt in food preservation is to

A. Remove water
B. Add flavour
C. Remove air
D. Lower the temperature

44.

The most likely reason why some expectant mothers crave for soil is to

A. Increase breast milk production after delivery
B. Increase appetite
C. Help in digestion of food
D. Provide sufficient mineral nutrients

45.

Which one of the following levers when in use has the position of the effort between the load and the fulcrum?

A. Spade
B. Wheelbarrow
C. Claw hammer
D. Crowbar

46.

A single fixed pulley

A. Changes direction of force
B. Increases effort distance
C. Reduces effort required
D. Reduces load distance

47.

The diagram below represents a tyre of a vehicle

The purpose of treads in the vehicle tyre is to

A. Make them last longer
B. Increase grip on the road
C. Reduce surface area
D. Make them lighter

48.

The following activities are carried out when making a beam balance but not in the correct order

(i) Suspend the arm to find balance point and mark
(ii) Make a base, a stand and the arm
(iii) Fix the stand and the arm to the base
(iv) Suspend tins on both sides of the arm

Which one of the following is the CORRECT order in which the activities are carried out?

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

49.

Which one of the following statements is CORRECT about a stone thrown a few metres directly upwards by a passenger in a moving lorry? The stone will fall

A. In front of the person
B. Behind the person
C. On the person
D. Behind the lorry

50.

The diagram below represents a certain weed

The weed is

A. Pigweed
B. Mexican marigold
C. Black jack
D. oxalis

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27/8/2019

KCPE PAST PAPERS 2006: SCIENCE QUESTIONS AND ANSWERS [1-25]

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COURTESY OF ATIKA SCHOOL

KCPE PAST PAPERS 2006: SCIENCE QUESTIONS AND ANSWERS [1-25]

1.	Sweat glands in the skin of a human body are located in the A. Epidemis B. Dermis C. Pores D. Oil glands

2.	Which one of the following parts of a human body produces urine? A. Bladder B. Ureter C. Kidney D. Urethra

3.	The diagram below represents the reproductive system in the female human body Fertilization takes place in the part labelled A. K B. L C. M D. N

The following are some of the physical changes that take place during adolescence.

(i) Hips become broader
(ii) Chest and shoulders become broader
(iii) Pimples may appear on the face
(iv) Voice breaks
(v) Pubic hair grows

Which of the following changes take place in a girl?

A. (i) (ii) (v)
B. (i) (iii) (iv)
C. (ii) (iv) (v)
D. (i) (iii) (v)

Which one of the following groups consists of only diseases that are immunisable?

A. Whooping cough, tuberculosis, tetanus
B. Measles, malaria, diptheria
C. Dysentry, hepatitis B, poliomelytis
D. Bilhazia, yellow fever, cholera

Also Read

6.	The following are stages of HIV infection (i) Window stage (ii) Symptoms (iii) Full blown (iv) Incubation Which one of the following is the CORRECT order of the stages? A. (ii) (i) (iii) (iv) B. (iv) (ii) (iii) (i) C. (i) (iv) (ii) (iii) D. (i) (iii) (iv) (ii)

7.	The following are effects of drug abuse (i) Rape (ii) Addiction (iii) Lack of concetration (iv) Truancy (v) Impaired judgement Which of them are health effects? A. (i) (ii) (iii) B. (ii) (iii) (iv) C. (i) (iv) (v) D. (ii) (iii) (v)

8.	One evening, a pupil noticed a bright heavenly body that was not twinkling. The heavenly body was most likely A. Saturn B. Uranus C. Venus D. Neptune

9.	The reason for using a biro pen cap as a pivot in the construction of an improved wind vane is to make the arrow A. Rotate freely B. Balance on the stand C. Tail show the direction of wind D. Head heavy

10.

Which one of the following statements is true about the planet Mars? It is

A. Nearest to the sun
B. The brightest planet
C. Nearest to the earth
D. The smallest planet

11.

Which one of the following is a leguminous plant?

A. Cabbage
B. Maize
C. Groundnut
D. Tomato

12.

Fertilization in plants takes place when

A. A pollen tube enters the ovule
B. Reproductive cells in pollen grain and ovule fuse
C. A pollen grain falls on the stigma and germinates
D. A pollen tube enters the ovary

13.

Which of the following groups only consists of non-flowering plants?

A. Pine, cedar, Cypress
B. Sugar cane, sisal, onion
C. Cedar, moss, kale
D. Carrot, cassava, cactus

14.

Which of the following groups of plants have the same type of root system?

A. Tomato, maize, peas
B. Bean, black jack, cabbage
C. Groundnuts, rice, sugar cane
D. Millet, cassava, carrot

15.

Which one of the following parasites destroys wool in sheep?

A. Mites
B. Lice
C. Fleas
D. Ticks

16.

The toothless gap in the lower jaw of herbivores is for?

A. Turning plant material in the mouth for proper chewing
B. Holding food material
C. Allowing space for more food
D. Preventing the animals from biting their tongues

17.

Which one of the following animals has the same number of legs as the tick

18.

Which one of the following is a filter feeder?

A. Kingfisher
B. Hawk
C. Duck
D. Sunbrid

19.

Which one of the following is NOT an immediate sign of ill health in livestock?

A. Coughing
B. Blood in stool
C. Rough coat
D. Loss of weight

20.

Which one of the following is a method of softening hard water?

A. Filtering
B. Boiling
C. Decanting
D. Sieving

21.

Which one of the following practices will help to prevent the spread of cholera?

A. Spraying chemicals in stagnant water
B. Wearing protective shoes when passing through water
C. Drinking filtered water
D. Covering pit latrines after use

22.

Which one of the following NEED NOT be the same as when investigating drainage in different types of soil?

A. Amount of soil in the funels
B. Size of funnels
C. Size of bottles colleting the draining water
D. Amount of water added to the funnels

23.

The following are effects of soil erosion

(i) Small holes in the ground
(ii) Top layer of soil missing
(iii) Small and shallow channels in the ground
(iv) V-shaped trenches in the ground

Which effects are as a result of splash and rill types of erosion?

A. (i) and (iv)
B. (i) and (iii)
C. (ii) and (iii)
D. (ii) and (iv)

24.

Which of the following liquids mix?

A. Kerosene and water
B. Water and milk
C. Milk and kerosene
D. Cooking oil and mil

25.

The diagram below represents a setup that can be used to demostrate a certain property of metals

Which property of metals was being demonstrated?

A. Metals expand when heated
B. Metals bend when heated
C. Solids conduct heat
D. Hot metals are pulled down by weight

ANSWERS

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23/7/2019

KCPE PAST PAPERS: SCIENCE 2018 ANSWERS

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PREVIOUSLY << FREE KCPE PAST PAPERS: 2018 MATHEMATICS ANSWERS

KCPE PAST PAPERS: SCIENCE 2018 ANSWERS

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LATEST KCPE PAST PAPERS & ANSWERS

KCPE PAST PAPERS 2007: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]

​KCPE PAST PAPERS 2007: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]

Which one of the following pairs of processes ia as a result of increase in temperature?

The diagram below show a set up that was used to demonstrate a certain property of matter.

A sufuria made up of steel weighing 1000g floats on water while a nail made of iron weighing 50g sinks.

Which of the following material will NOT be required in an experiment to show that pressure in a liquid increase with depth?

The diagram below represents a circuit that can be used to make a temporary magnet.

The following are forms of energy

The following practices help to conserve energy:

Which of the following is a recommended practice to avoid being struck by lighting?

Which one of the following group consists of only foodstuff that are used for body buiding and repair?

The function of fibre in the human diet is to

Which one of following statements is NOT TRUE about the force that opposes movement the force

A farmer noticed small and shallow channels forming in the soil in the garden due to running water. This type of soil erosion is called

Which one of the following plants is a cereal?

Which one of the following consists of a pair plants that CANNOT make their own food?

Which one of the following pairs of parasites can be controlled by spraying?

Which one of the following sources of electricity pollutes the environment?

Which one of the following is a natural way of lighting a house ? using a

Which one of the following components is found in all environments?

Which one of the following groups of methods can be used to separate solid mixtures only?

Which one of the following DOES NOT function the same way as a bicycle dynamo when used to produce electricity?

The diagram below represent a simple machine.

The diagram below represents a block of wood being pushed along pushed a surface towards point X

Which one of the following consists of only material that are ALL non-magnetic?

The reason why coloured water is used in the construction of a liquid thermometer is to

Which one of the following is the largest planet?

KCPE PAST PAPERS 2006: SCIENCE QUESTIONS AND ANSWERS [25-50]

KCPE PAST PAPERS 2006: SCIENCE QUESTIONS AND ANSWERS [25-50]

A pupil investigating a certain aspect of pressure in a liquid used a setup shown in the diagram below

The temperature at which a substance freezes is the same temperature at which the substance

Which one of the following consists of only substances that have no definite shape but have definite volume?

The diagram below represents a setup that can be used to demonstrate heat transfer in air

The percentage of the component of air that is fixed by bacteria in root nodules to make nutrients for the plant is

Which one of the following is the last step when separating a mixture of sand and salt?

The diagram below shows a stone being thrown using a catapult

Which one of the following is CORRECT about a solar heater? A solar heater changes

Tall buildings are fitted with sharp pointed metal rods at their tops and connected to the ground. The rods are for

Which one of the following is TRUE about the rainbow? It forms

Which one of the following energy transformations take place when a radio that uses cells is operating?

Which one of the following sources of energy DOES NOT contain chemical energy?

Heat reaches the feet of a person seated by the side of a fire by

Which one of the following DOES NOT pollute the air?

The main reason why it is advisable to spray crops in the direction of wind is to avoid

The following signs and symptoms were observed in a certain child

Which one of the following groups consists only of foodstuffs that protect the body against diseases?

The purpose of salt in food preservation is to

The most likely reason why some expectant mothers crave for soil is to

Which one of the following levers when in use has the position of the effort between the load and the fulcrum?

A single fixed pulley

The diagram below represents a tyre of a vehicle

The following activities are carried out when making a beam balance but not in the correct order

Which one of the following statements is CORRECT about a stone thrown a few metres directly upwards by a passenger in a moving lorry? The stone will fall

The diagram below represents a certain weed

Also Read

KCPE PAST PAPERS 2006: SCIENCE QUESTIONS AND ANSWERS [1-25]

​KCPE PAST PAPERS 2006: SCIENCE QUESTIONS AND ANSWERS [1-25]

Sweat glands in the skin of a human body are located in the

Which one of the following parts of a human body produces urine?

The diagram below represents the reproductive system in the female human body

The following are some of the physical changes that take place during adolescence.

Which one of the following groups consists of only diseases that are immunisable?

Also Read

The following are stages of HIV infection

The following are effects of drug abuse

One evening, a pupil noticed a bright heavenly body that was not twinkling. The heavenly body was most likely

The reason for using a biro pen cap as a pivot in the construction of an improved wind vane is to make the arrow

Which one of the following statements is true about the planet Mars? It is

Which one of the following is a leguminous plant?

Fertilization in plants takes place when

Which of the following groups only consists of non-flowering plants?

Which of the following groups of plants have the same type of root system?

Which one of the following parasites destroys wool in sheep?

The toothless gap in the lower jaw of herbivores is for?

Which one of the following animals has the same number of legs as the tick

Which one of the following is a filter feeder?

Which one of the following is NOT an immediate sign of ill health in livestock?

Which one of the following is a method of softening hard water?

Which one of the following practices will help to prevent the spread of cholera?

KCPE PAST PAPERS 2007: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]

KCPE PAST PAPERS 2006: SCIENCE QUESTIONS AND ANSWERS [1-25]