KCPE PAST PAPERS 2016 SCIENCE QUESTIONS AND ANSWERS
Question 26.
Which one of the following pairs of signs and symptoms is for cholera?
Question 27.
Large burrows in the soil indicate
Question 28.
Which one of the following statements is true about clay soil?
Question 29.
Which one of the following soil conservation measures conserves soil in the same way as mulching?
Question 30.
The following statements are true about breast milk except
Question 31.
A child who appears old with a wrinkled face is also likely to
Question 32.
Which one of the following groups consists only of foods that will provide energy to the body?
Question 33.
The diagram below illustrates a jiko.
It is an improved jiko because the part labelled
Question 34.
Which one of the following sources of energy is exhaustible?
Question 35.
Which one of the following is an efficient way of using energy?
Question 36.
The following can produce electricity except
Question 37.
A card with the word TEACHER written on it was placed in front of a mirror.
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Question 41.
After using a magnet, the next stage of separating a mixture of salt, sand and iron fillings is to
- A. filter the mixture
- B. decant the mixture
- C. add water to the mixture
- D. sieve the mixture.
Question 42.
The diagram below shows a set up used by pupils to demonstrate a certain property of matter.
The mistake made in the set up was to
- A. use balls of wax of the same size
- B. place balls of wax at equal intervals
- C. use a plank of wood ‘
- D. place the candle at the end of the plank of wood.
Question 43.
Which one of the following groups of materials are correctly matched to magnetic and non magnetic?
Magnetic Non magnetic
- A. Office pins steel wool
- B. Staples copper coin
- C. Aluminium foil nails
- D. Silver coin glass
Question 44.
Which one of the following machines works in the same way as a staircase?
- A. Spade.
- B. Claw hammer.
- C. Crowbar.
- D. Ladder.
Question 45.
Which one of the following practices will help to control soil pollution?
- A. Burning wastes in dump sites.
- B. Using organic fertilisers.
- C. Grouping wastes into categories.
- D. Planting cover crops.
Question 46.
Which one of the following pairs correctly represents living and non-living components of the environment?
Living Non-living
- A. Soil bat.
- B. Chameleon mushroom plant.
- C. earthworm water.
- D. Oxygen mineral salts.
Question 47.
The following are some ways by which soil is conserved.
(i) reducing speed of surface runoff
(ii) Trapping soil
(iii) Reducing evaporation of soil water
(iv) Reducing impact of rain drops.
Which two ways are as result of contour farming
(ii) Trapping soil
(iii) Reducing evaporation of soil water
(iv) Reducing impact of rain drops.
Which two ways are as result of contour farming
- A. (i) and (ii)
- B. (ii) and (iii)
- C. (iii) and (iv)
- D. (i) and (iv)
Question 48.
Which one of the following practices would help in maintaining strong teeth in humans?
- A. Drinking milk.
- B. Using tooth picks after meals.
- C. Using teeth to break hard objects.
- D. Eating of bread.
Question 49.
The diagram below represents a lever in use.
if the lever is to make work easier, which one of the following will correctly represent the position of load, fulcrum and effort?
Question 50.
In which one of the following is friction reduced by streamlining?
In which one of the following is friction reduced by streamlining?
A. Biro pen casing.
B. Skating shoes.
C. Shoe soles.
D. Vehicle bodies.
A. Biro pen casing.
B. Skating shoes.
C. Shoe soles.
D. Vehicle bodies.
MORE STD 8 REVISION RESOURCES
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KCPE PAST PAPERS 2016 SCIENCE QUESTIONS AND ANSWERS
Question 01.
Which one of the following characteristics can be used to identify molars?
Which one of the following characteristics can be used to identify molars?
Presence of
- A. one root and chisel shape
- B. cusps and ridges
- C. one root and cusps
- D. ridges and chisel shape.
![KCPE PAST PAPERS 2016: SCIENCE QUESTIONS AND ANSWERS [QNS 1-25]](/uploads/6/0/4/0/60406393/edited/dscf4247.jpg)
Question 02.
The following are functions of the trachea except
- A. trapping dust
- B. moistening air
- C. warming air
- D. exchanging gases.
Question 03.
Which one of the following parts of the alimentary canal is correctly matched to its function?
Question 04.
The diagram below represents the structure of a human heart.
Name the blood vessel labelled K. L, M and N.
Question 05.
The diagram below represents a female reproductive system.
Which one of the parts labelled P, Q, R and S is correctly matched to its function?
Question 06.
Which one of the following is a health effect of drug abuse?
- A. Withdrawal.
- B. Marital conflict.
- C. Truancy.
- D. Rape.
Question 07.
The first stage of HIV infection is known as
- A. incubation
- B. widow
- C. symptomatic
- D. asymptomatic
Question 08.
Which one of the following vaccines are correctly matched to the age when they are first administered?
Question 09.
Which one of the following diseases can be prevented by draining stagnant water around homesteads?
- A. Tuberculosis.
- B. Typhoid.
- C. Cholera.
- D. Malaria.
Question 10.
A patient was instructed by a doctor to take two tablets of medicine every six hours. However, the patient forgot to take at noon and on remembering took four tablets at the same time.
A patient was instructed by a doctor to take two tablets of medicine every six hours. However, the patient forgot to take at noon and on remembering took four tablets at the same time.
The patient should have
- A. taken three tablets every six hours
- B. taken two tablets every three hours
- C. revisited the doctor for advice
- D. thrown away the two extra tablets.
Question 11.
Which one of the following pairs consists only of illegal drugs in Kenya?
- A. Alcohol and miraa.
- B. Miraa and mandrax.
- C. Alcohol and bhang.
- D. Bhang and mandrax.
Question 12.
Which one of the following weeds has green-purple leaves?
- A. Mexican marigold. .
- B. Blackjack.
- C. Pig weed.
- D. Sodom apple.
Question 13.
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.
Question 14.
Which one of the following statements on interdependence between plants is not true? Some plants
- A. depend on others for carbon dioxide
- B. grow on dead plants
- C. depend on others for protection against strong sunlight
- D. depend on others for support.
Question 15.
Which one of the following crop pests is correctly matched to the part of the plant it damages?
Question 16.
Which one of the following groups of plants consists of only flowering plants?
- A. Onion, sisal, nappier grass.
- B. Maize, kales, toadstools.
- C. Beans, mushrooms, peas.
- D. Euphorbia, cactus, moulds.
Question 17.
Which one of the following diagrams represents the shape of the new moon?
Question 18.
In the solar system, Jupiter is found between
- A. Mercury and Saturn.
- B. Mars and Earth.
- C Saturn and Mars.
- D. Earth and Mercury.
Question 19.
Pupils observed and classified certain animals into two groups E and F as shown below?
The pupils classified the animals on basis of
- A. carnivorous and herbivorous
- B. animals covered with fur and animals covered with scales .
- C. constant and varying body temperature
- D. animals which give birth to young ones and those which lay eggs.
Question 20.
Standard five pupils observed a goat tied on a post to graze in the field. This method of grazing is classified as
- A. rotational grazing
- B. zero grazing
- C. strip grazing
- D. paddocking.
Question 21.
The diagrams below represents beaks of certain birds.
Question 22.
Which one of the following methods of controlling animal parasites is correctly matched to the parasite controlled?
Question 23.
Pupils gave the following statements about water.
(i) Lathers easily
(ii) Has a pleasant taste
(iii) Has mineral salts
(iv) Good for cleaning
Which two statements describe hard water?
(ii) Has a pleasant taste
(iii) Has mineral salts
(iv) Good for cleaning
Which two statements describe hard water?
- A. (i) and (ii)
- B. (ii) and (iii)
- C. (iii) and (iv)
- D. (i) and (iv)
Question 24.
Which one of the following pairs of diseases is as a result of drinking polluted water?
- A. Bilharzia and typhoid. . .
- B. Typhoid and cholera.
- C. Cholera and bilharzia.
- D. Malaria and cholera.
Question 25.
In which one of the following practices is water recycled?
- A. Storing water for future use.
- B. Recovering clean water from dirty water.
- C. Harvesting rain water from roof tops.
- D. Fetching water from a well.
​MORE STD 8 REVISION RESOURCES
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FULL SET EXAMS FROM PLAYGROUP TO STANDARD 8
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KCPE PAST PAPERS 2015 SCIENCE QUESTIONS AND ANSWERS
Question 26.
The most effective control measure against 111V transmission from mother to child is
- A. public awareness on HJV/AIDS
- B. voluntary counselling and testing
- C. mass education
- D. campaign through various media.
Question 27.
The surrounding of an organism is described as its
- A. environment
- B. home
- C. shelter
- D. habitat.
Question 28.
The diagram below shows parts of the human heart.
Blood from the legs enters the heart through the blood vessel labelled
- A. V
- B. W
- c. X
- D. Y
Question 29.
Which one of the following is the most commonly abused drug in Kenya?
- A. Khat.
- B. Glue.
- C. Tobacco.
- D. Alcohol.
Question 30.
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
(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.
Question 31.
Which one of the following uses of water is not practised on the farm?
- A. Mixing chemicals.
- B. Washing toilet.
- C. Cleaning implements.
- D. Irrigation.
![KCPE PAST PAPERS 2015: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]](/uploads/6/0/4/0/60406393/edited/dsc00883.jpg)
Question 32.
An example of a lever in which the load is between the effort and fulcrum is
- A. wheelbarrow
- B. spade
- C. claw hammer
- D. crowbar.
Question 33.
Which one of the following statements describes hard water?
- A. Contains less mineral salts.
- B. Lathers easily.
- C. Boiled water.
- D. Discolours clothes.
Question 34.
The following are some characteristics of plants:
(i) thin cuticle
(ii) silvery hairs
(iii) flexible stems
(iv) more stomata on lower leaf surface
(v) air sacs
Which pair of characteristics is for plants adapted to wet areas?
(ii) silvery hairs
(iii) flexible stems
(iv) more stomata on lower leaf surface
(v) air sacs
Which pair of characteristics is for plants adapted to wet areas?
- A. (ii) and (iv)
- B. (i)and(v)
- C. (iii) and (iv)
- D. (i) and (ii)
Question 35.
Which one of the following is an example of a harmful animal?
- A. Turkey.
- B. Donkey.
- C. Termite.
- D. Dog.
Question 36.
The following are misconceptions about HIV and AIDS EXCEPT
- A. HIV and AIDS is a curse
- B. sex with a young girl cures HIV and AIDS
- C. HIV and AIDS has no cure
- D. all thin people have AIDS.
Question 37.
Which one of the following is the least effective preventive measure against the spread of typhoid?
- A. Washing vegetables and fruit.
- B. Washing hands after visiting a toilet.
- C. Proper use of latrines and toilets.
- D. Draining stagnant water.
Question 38.
During a thunderstorm, pupils were observed
(i) sheltering under the verandah
(ii) wearing red jackets in a classroom
(iii) playing on the football pitch
(iv) lying on the ground in the classroom.
In which pair of observations are the pupils more likely to be struck by lightning?
(ii) wearing red jackets in a classroom
(iii) playing on the football pitch
(iv) lying on the ground in the classroom.
In which pair of observations are the pupils more likely to be struck by lightning?
- A. (i) and (iii)
- B. (i) and (iv)
- C. (ii) and (iii)
- D. (ii) and (iv)
Question 39.
In which one of the following activities is renewable energy in use?
- A. Driving a petrol powered car.
- B. Using a windmill to grind maize.
- C. Cooking on energy saving charcoal stove.
- D. Using coal to generate electricity.
Question 40.
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.
Question 41.
Which one of the following is a way of maintaining simple tools?
- A. Cleaning before use.
- B. Storing in a safe place.
- C. Using a tool for several purposes.
- D. Oiling.
Question 42.
The following are some of the materials that were provided to pupils for making a beam balance:
(i) two tins of the same size
(ii) wires
(iii) plank of wood
(iv) nails
Which one of the following materials was missing?
(ii) wires
(iii) plank of wood
(iv) nails
Which one of the following materials was missing?
- A. Stand.
- B. Strings.
- C. Scale.
- D. Pins.
Question 43.
Which one of the following is an effect of air pollution on non-living things?
- A. Impairs visibility.
- B. Damages iron sheets.
- C. Causes wilting.
- D. Interferes with photosynthesis.
Question 44.
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?
(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.
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Question 45.
Which one of the following statements is true about splash erosion?
- A. Forms shallow trenches.
- B. Caused by wind and water.
- C. Removes a thin layer of soil.
- D. Occurs below roofs of buildings.
Question 46.
Which one of the following practices is the most effective in prevention of food poisoning from packed foods?
- A. Washing hands before handling it.
- B. Checking the expiry date.
- C. Proper storage
- D. Proper cooking.
Question 47.
The diagram below shows a set-up to demonstrate a certain aspect of matter
Which one of the following is likely to occur after some time?
- A. Air gets into the balloon.
- B. Heat enters the balloon.
- C. Water enters into the bottle.
- D. Balloon contracts.
Question 48.
The following statements are true about energy except
- A. it causes motion
- B. it can be conserved
- C. it changes from one form to another
- D. is the ability to do work.
Question 49.
Which one of the following pairs of materials is suitable for demonstrating the formation of a rainbow when using the sun as a source of light?
- A. Ruler and mirror.
- B. Mirror and water.
- C. Mirror and white screen.
- D. Glass container and mirror.
Question 50.
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.
MORE STD 8 REVISION RESOURCES
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​KCPE PAST PAPERS 2015: SCIENCE QUESTIONS AND ANSWERS [QNS 1-25]
Question 01.
The main function of the hair and mucus found in the breathing system is to
- A. help in exchange of gases
- B. clean the air
- C. protect the nose
- D. keep the trachea open.
Question 02.
The following are characteristics of a certain type of tooth:
(i) sharp
(ii) chisel shaped
(iii) has one root
The type of tooth described is a
(ii) chisel shaped
(iii) has one root
The type of tooth described is a
- A. molar
- B. canine
- C. premolar
- D. incisor.
![KCPE PAST PAPERS 2015: SCIENCE QUESTIONS AND ANSWERS [QNS 1-25]](/uploads/6/0/4/0/60406393/edited/img-20180521-124554.jpg)
Question 03.
Which one of the following pairs of diseases is correctly matched with the time of immunization?
Question 04.
Which is the last stage in energy transformation when a kerosene stove is burning?
- A. Chemical.
- B. Heat.
- C. Light.
- D. Sound.
Question 05.
The diagram below represents a set-up that can be used to demonstrate a certain aspect of heat energy.
The aspect that can be demonstrated is
- A. radiation and convection
- B. expansion and conduction
- C. convection and conduction
- D. expansion and radiation.
Question 06.
Which one of the following is a compound fertilizer?
- A. Muriate of potash
- B. Triple Super Phosphate
- C. Sulphate of Ammonia
- D. Mono Ammonium phosphate
Question 07.
Which one of the following statements is correct about the digestive system?
- A. Oesophagus makes it easy for food absorption.
- B. Stomach mixes food with digestive juices.
- C. Digestion of food occurs in the large intestine.
- D. Water is absorbed in the small intestine.
Question 08.
The picture below represents a type of interdependence between plants.
The type of interdependence represented
- A. support
- B. shade
- C. habitat
- D. shelter.
Question 09.
A pupil used water that had been used in rinsing clothes to mop the floor. Which method of water conservation did the pupil practice?
- A. Re-using water.
- B. Using water sparingly.
- C. Recycling water.
- D. Water harvesting.
Question 10.
The importance of fibre in the human diet is to help in the
- A. digestion of food
- B. movement of food
- C. absorption of water
- D. absorption of nutrients.
Question 11.
The following are characteristics of a certain animal:
(i) lays eggs
(ii) has constant temperature
(iii) has a hairy body
The animal is likely to be
(ii) has constant temperature
(iii) has a hairy body
The animal is likely to be
- A. ostrich
- B. spiny anteater
- C. whale
- D. bat.
Question 12.
The picture below shows a tomato plant with a sign of crop disease.
The sign shown is
- A. leaf curling
- B. spots
- C. streaks
- D. wilting.
Question 13.
Which one of the following components of air is correctly matched to its percentage?
Question 14.
Which one of the following is a social effect of drug abuse?
- A. Truancy.
- B. Fits.
- C. Withdrawal.
- D. Addiction.
Question 15.
he chart below represents a simple classification of plants.
Which one of the following plants is not correctly classified?
- A. Moulds.
- B. Pine.
- C. Toadstool.
- D. Fern.
Question 16.
A child has the following signs and symptoms:
(i) gets out of breath
(ii) pale skin
(iii) dizziness.
Which one of the following foods should the child feed on?
(ii) pale skin
(iii) dizziness.
Which one of the following foods should the child feed on?
- A. Yams and cassava.
- B. Beans and maize.
- C. Kidney and spinach.
- D. Carrots and pineapples.
Question 17.
Which one of the following materials is non magnetic?
- A. Copper wire.
- B. Steel wool.
- C. Office pin.
- D. Razor blade.
Question 18.
Which one of the following statements is correct about proper use and storage of medicine?
- A. Sharing medicine with family members.
- B. Labelling medicine containers.
- C. Keeping medicine in a well lit place.
- D. Storing medicine in sealed water bottles.
Question 19.
Anaemia and irritation in livestock can be a sign of attack by
- A. liver flukes
- B. tapeworms
- C. tsetse flies
- D. round worms.
Question 20.
Which of the following body fluids is the least likely to transmit HIV?
- A. Breast milk.
- B. Semen.
- C. Vaginal secretions.
- D. Saliva.
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Question 21.
The picture below shows parts of a flower.
Question 22.
Which one of the following physical changes observed in boys and girls during adolescence is not correctly matched?
Boys Girls
- A. Voice breaks Pubic hair grows
- B. Wet dreams Hips broaden
- C. Pimples on face Chest broadens
- D. Pubic hair grows Pimples on face
Question 23.
Which one of the following livestock parasite control measures can be applied for both ticks and tapeworms?
- A. Rotational grazing.
- B. Dipping.
- C. Deworming.
- D. Spraying.
Question 24.
Which one of the following methods will mainly conserve soil and not water?
- A. Mulching.
- B. Terracing.
- C. Cover crops.
- D. Gabions.
Question 25.
In a certain activity, a sample of soil was mixed with water in a transparent container, shaken and allowed to settle.
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.
MORE STD 8 REVISION RESOURCES
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FULL SET EXAMS FROM PLAYGROUP TO STANDARD 8
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​2014 SCIENCE QUESTIONS AND ANSWERS
Question 26.
Which one of the following components of blood is correctly matched with its function?
Question 27.
The following are some effects of drug abuse:
(i) Rape
(ii) Addiction
(iii) Truancy
(iv) Impaired judgment
(v) Drug induced accidents.
Which one of the following consists only of social effects?
(ii) Addiction
(iii) Truancy
(iv) Impaired judgment
(v) Drug induced accidents.
Which one of the following consists only of social effects?
- A. (i) (ii) (iv).
- B. (ii) (iii) (iv).
- C. (i) (iii) (y).
- D. (i)(iv)(v).
![KCPE PAST PAPERS 2014: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]](/uploads/6/0/4/0/60406393/edited/dsc05762.jpg)
Graduants spectating at drama actors at Mt. Kenya University graduation ceremony main grounds in Thika on Dec.2017
Question 28.
Pupils constructed a weather instrument shown below.
The mistake made in the construction was
- A. using coloured water
- B. placement of the scale
- C. using a narrow tube
- D. closing the cork tightly.
Question 29.
Which one of the following pairs consists only of plants that directly feed on insects?
- A. Pitcher plant and sundew.
- B. Mushroom and butter wort.
- C. Sunflower and pitcher
- D. Sundew and toadstool.
Question 30.
The chart below shows a simple classification of plants.
Question 31.
Which one of the following pairs consists only of farm animals that produce mutton?
- A. Cow and goat.
- B. Goat and sheep.
- C. Cow and sheep.
- D. Sheep and pig.
Question 32.
The following are some characteristics of animals:
(i) Varying body temperatures.
(ii) Lay eggs.
(iii) Have scales.
(iv) Have a backbone.
Which two characteristics are for both toad and duck?
(ii) Lay eggs.
(iii) Have scales.
(iv) Have a backbone.
Which two characteristics are for both toad and duck?
- A. (i) and (iii).
- B. (i) and (ii).
- C. (ii) and (iv).
- D. (iii) and (iv).
Question 33.
The method of grazing that would require the largest piece of land to practice is
- A. herding
- B. stall feeding
- C. tethering
- D. paddocking.
Question 34.
Which of the following pairs of machines consists only of inclined planes
- A. Ladder and staircase.
- B. Staircase and wheelbarrow.
- C. Claw hammer and ladder.
- D. Spade and craw bar.
Question 35.
In which one of the following is friction an advantage?
- A. Skating on ice.
- B. Swimming in water.
- C. Production of heat in moving parts.
- D. Braking of a bicycle on a road.
Question 36.
In an investigation on factors affecting sinking and floating pupils carried out the following activities:
(i) placed a bottle top in water.
(ii) made the same bottle top into a ball and placed it on water.
Which one of the following factors were the pupils investigating?
(ii) made the same bottle top into a ball and placed it on water.
Which one of the following factors were the pupils investigating?
- A. Size.
- B. Shape.
- C. Type of material.
- D. Mass.
Question 37.
Heat transfer in liquids and gases mainly takes place through
- A. radiation
- B. convection and conduction
- C. convection
- D. conduction and radiation.
Question 38.
Which one of the following is a transparent material?
- A. Kerosene.
- B. Mirror.
- C. Frosted glass.
- D. White paper.
Question 39.
Which one of the following ¡s a safety measure against lightning when it is raining?
- A. Leaning against walls.
- B. Walking on open areas.
- C. Wearing rubber shoes.
- D. Using an umbrella.
Question 40.
Which one of the following nutrients is required for the formation of blood in expectant mothers?
- A. Vitamin D.
- B. Calcium.
- C. Phosphorus.
- D. Iron.
Question 41.
Which one of the following soil conservation measures is least suitable on a large piece of land?
- A. Terracing.
- B. Mulching.
- C. Tree planting.
- D. Contour farming.
Question 42.
When pupils heated some garden soil, smoke was produced. The observation made indicated the presence of
- A. organic matter
- B. air
- C. mineral particles
- D. water.
Question 43.
The following are some characteristics of soil:
(i) fine particles.
(ii) cracks when dry.
(iii) poor drainage.
(iv) good capillarity.
The characteristics are for
(ii) cracks when dry.
(iii) poor drainage.
(iv) good capillarity.
The characteristics are for
- A. loam soil only
- B. loam and sand soil
- C. clay soil only
- D. loam and clay soil.
Question 44.
Pupils went for a nature walk and observed a plant with yellow fruits and thorns on the stem.
The plant observed was likely to he
- A. Mexican marigold
- B. pig weed
- C. blackjack
- D. Sodom apple.
Question 45.
Which one of the following groups only consists of materials that are non-magnetic?
- A. Piece of glass, silver coin, cello tape.
- B. Nail, steel wool, spoon.
- C. Scissors, razor blade, piece of glass.
- D. Staple pins, sowing needle, aluminium.
Question 46.
Which one of the following groups consists only of gases that comprise 0.03, 0.97 and 21 percentage in air respectively?
- A. Inert gases, oxygen and nitrogen.
- B. Carbon dioxide, inert gases and oxygen.
- C. Inert gases, carbon dioxide and nitrogen.
- D. Carbon dioxide, oxygen and nitrogen.
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Question 47.
One of the following is not a component of soil?
- A. Rock particles.
- B. Water.
- C. Plant.
- D. Air.
Question 48.
The diagram below represents a set up that can he used to investigate good and poor conductors of electricity’?
Which one of the following materials when used to connect wires at point S would make the bulb not light?
- A. Pencil.
- B. Aluminium foil.
- C. Steel wool.
- D. Rubber band.
Question 49.
The diagram below represents a claw hammer in use.
Which pair of the positions V, W, X and Y represents the load and pivot?
- A. V and Y.
- B. W and X.
- C. V and X.
- D. W and Y.
Question 50.
In a certain investigation pupils sat at different positions around a pupil who was ringing a hell.
Which one of the following aspects of sound were the pupils investigating?
- A. Special sounds.
- B. Loud and soft sound.
- C. Noise pollution.
- D. Direction of sound.
MORE STD 8 REVISION RESOURCES
-
FULL SET EXAMS FROM PLAYGROUP TO STANDARD 8
https://drive.google.com/open?id=1cdxLC-nRPWN1S47IUQNNEB81Aoar4AaT - DOWNLOAD MORE KCPE 2014 PAST PAPERS AND MARKING SCHEMES​https://www.atikaschool.org/kcpe-past-papers-and-answer/kcpe-2014-past-papers-questions-answers-and-reports
​KCPE PAST PAPERS 2014: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]
Question 01.
In the human body digested food is absorbed in the
- A. stomach
- B. large intestines
- C. rectum
- D. small intestines.
Question 02.
The diagram below represents a certain type of human tooth.
The function of the tooth is
- A. gripping and tearing
- B. tearing and grinding
- C. crushing and grinding
- D. biting and crushing.
Question 03.
A certain person looked healthy and strong hut tested positive for HlV/AIDS. In which one of the following stages of HI V/AIDS was the person likely to be?
- A. Window.
- B. Incubation.
- C. Symptomatic.
- D. Full blown.
Question 04.
The following are sexually transmitted infections except
- A. syphilis
- B. gonorrhoea
- C. bilharzia
- D. chancroid.
![KCPE PAST PAPERS 2014: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]](/uploads/6/0/4/0/60406393/edited/dsc00684.jpg)
CBC & CEMASTEA Facilitator delivering content to teachers at Kisii High School (April, 2019)
Question 05.
Which one of the following pairs consists of planets with the longest orbits?
- A. Mars and Mercury.
- B. Venus and Jupiter.
- C. Earth and Saturn.
- D. Neptune and Uranus.
Question 06.
In order to make a certain weather instrument, a pupil assembled the following materials:
Glass bottle, ink, biro pen tube, nails, manilla paper and water.
Which one of the following instrument was the pupil likely to make?
Which one of the following instrument was the pupil likely to make?
- A. Wind vane.
- B. Liquid thermometer.
- C. Rain gauge.
- D. Windsock.
Question 07.
The following are some adaptations of plants that grow in wet environment except having
- A. large flat leaves
- B. leaves with waxy upper surface
- C. thick leaf cuticle
- D. an increased number of stomata.
Question 08.
Which one of the following groups consists only of field pests?
- A. Weevils, aphids and weaver birds.
- B. Aphids, weaver birds and white ants.
- C. Weevils, white ants and Stalkborer.
- D. Aphids, weaver birds and Stalkborer.
Question 09.
Which one of the following is a characteristic of amphibians?
- A. Lay their eggs on land.
- B. Live partly in water.
- C. Have moist skin with scales.
- D. Adults breathe through gills.
Question 10.
The diagram below represents a beak of a certain bird.
The bird represented is a
- A. filter feeder
- B. grain eater
- C. nectar feeder
- D. fish eater.
Question 11.
In which one of the following activities is water used in industries?
- A. Cleaning tools and equipment.
- B. Preparation of soft drinks.
- C. Washing cars.
- D. Watering plants.
Question 12.
Which one of the following is an advantage of hard water?
- A. Saves soap during washing.
- B. Lathers easily with soap.
- C. Forms scum with soap.
- D. Suitable for drinking.
Question 13.
Mary and John were playing on the see saw as shown in the diagram below.
In order to balance on the see-saw
- A. John should move towards the pivot
- B. Mary should move away from pivot
- C. move the pivot towards John
- D. move the pivot towards Mary.
Question 14.
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?
(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).
Question 15.
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.
Question 16.
Which one of the following pairs of processes are as a result of increase and decrease in temperature respectively?
Question 17.
Which one of the following statements is true about liquids and gases?
- A. Liquids have definite volume.
- B. Gases have definite volume.
- C. Liquids have definite shape.
- D. Gases have definite shape.
Question 18.
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.
Question 19.
The energy transformation that takes place when a torch that uses batteries is switched on is
- A. electrical—>chemical——>heat—>light
- B. electrical—> heat—>chemical—>light
- C. chemical—>electrical--->light——>heat
- D. chemical—>electrical—-->heat——>light.
Question 20.
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.
Question 21.
Which one of the following is a source of electricity?
- A. Torch.
- B. Dam.
- C. Solar panel.
- D. Biogas plant.
Question 22.
Which one of the following consists of foods that are mainly for body building?
- A. beef cassava, potatoes.
- B. mutton, maize, pawpaw.
- C. peas, beans, eggs.
- D. carrots, bananas, tomatoes.
Question 23.
Which one of the following groups of symptoms is correctly matched with the deficiency disease?
Question 24.
Which one of the following pairs consists only of components of environment that produce carbon dioxide?
- A. Air and plants.
- B. Animals and plants.
- C. Water and air.
- D. Soil and animals.
Question 25.
Use of excess fertilisers will mainly pollute
- A. soil and rater
- B. water only
- C. soil and air
- D. soil only.
MORE STD 8 REVISION RESOURCES
-
FULL SET EXAMS FROM PLAYGROUP TO STANDARD 8
https://drive.google.com/open?id=1cdxLC-nRPWN1S47IUQNNEB81Aoar4AaT -
DOWNLOAD MORE KCPE 2014 PAST PAPERS AND MARKING SCHEMES​https://www.atikaschool.org/kcpe-past-papers-and-answer/kcpe-2014-past-papers-questions-answers-and-reports
​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
(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.
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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
​KCPE PAST PAPERS 2013: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]
Question 01.
​Heat is transferred through a vacuum by
- A. convection and conduction’
- B. convection only
- C. conduction and radiation
- D. radiation only.
Question 02.
The best procedure of separating a mixture of sand, maize and salt is
- A. picking, dissolving, filtering. evaporating
- B. dissolving, filtering, picking, evaporating
- C. picking, filtering, dissolving, evaporating
- D. dissolving, decanting, picking, evaporating.
Question 03.
To stop a moving object, the force applied should be
- A. in the same direction as that of the moving object
- B. opposite and less than that of the moving object
- C. equal and in the opposite direction to that of the moving object
- D. perpendicular and more than that of the moving object.
Question 04.
The soil component investigated is
- A. organic matter
- B. water
- C. air
- D. mineral salts.
Question 05.
Which of the following pairs of processes occurs when temperature decreases?
- A. Melting and condensation.
- B. Freezing and melting..
- C. Contraction and evaporation.
- D. Freezing and condensation.
Question 06.
Which one of the following animals has scales on its body?
- A. Chameleon.
- B. Whale.
- C. Toad.
- D. Newt.
Question 07.
The main reason why mothers are encouraged to breast feed their infants is because breast milk
- A. is free from disease causing germs
- B. is at the right temperature for infants
- C. boosts infant immunity
- D. is easily digested by infants.
Question 08.
Splash erosion can be prevented by
- A. use of gabions
- B. mulching
- C. terracing
- D. contour farming.
Question 09.
Newton is the unit for measuring
- A. weight
- B. mass
- C. volume
- D. pressure.
Question 10.
Soil that is good for modelling has
- A. high water drainage
- B. rough texture
- C. high capillarity
- D. large air spaces.
Question 11.
The following are processes that take place during birth in humans
(i) Dilation of the cervix
(ii) Contraction of the uterus
(iii) Bursting of the amniotic bag
(iv,) Pushing out of the baby
(v) Cutting of the umbilical cord
Which of the following is the correct order of the processes?
(ii) Contraction of the uterus
(iii) Bursting of the amniotic bag
(iv,) Pushing out of the baby
(v) Cutting of the umbilical cord
Which of the following is the correct order of the processes?
- A. (i), (iii), (ii), (iv), (v).
- B. (i), (iii), (iv), (ii), (v).
- C. (ii), (i), (iii), (iv), (v).
- D. (ii), (iv), (iii), (i), (v).
Question 12.
A farmer practicing stall feeding ¡s likely to feed animals on .
- A. pasture and fodder
- B. pasture and concentrates
- C. fodder and concentrates
- D. concentrates only.
Question 13.
Which of the following statements is true about Vena Cava? It carries
- A. deoxygenated blood
- B. blood from the lungs
- C. blood under high pressure
- D. blood from the heart.
Question 14.
Which of the following materials are both opaque?
- A. Mirror and fresh milk.
- B. Paper smeared with oil and frosted glass.
- C. Fresh milk and frosted glass.
- D. Mirror and paper smeared with oil.
Question 15.
Which one of the following pairs is a source of electricity?
- A. Dam and a dynamo.
- B. Wind-driven turbine and a dam.
- C. Torch and a dynamo.
- D. Dry cell and a geothermal generator.
Question 16.
Which of the following statements is true about cumulus clouds?
- A. Their presence is a sign of rain.
- B. Appear at low altitude and spread out in flat layers.
- C. They are shaped like mountains.
- D. They are dark grey in colour.
Question 17.
Which of the following planets are in the 2nd and 6th positions from the sun?
- A. Mars and Jupiter.
- B. Venus and Saturn.
- C. Earth and Saturn.
- D. Venus and Jupiter.
Question 18.
In which of the following pairs of levers is the load, effort and fulcrum likely to be in similar positions when in use?
- A. Crowbar and claw hammer.
- B. Wheelbarrow and spade.
- C. Crowbar and spade.
- D. Claw hammer and wheelbarrow.
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Question 19.
Which of the following pairs of objects is correctly classified into magnetic and non-magnetic?
Magnetic Non-magnetic
- A. Glass sheet Tin can.
- B. Steel needle Pencil lead.
- C. Copper coin Steel wool.
- D. Razor blade Staple pin.
Question 20.
The diagram below represents a set-up that is used to demonstrate a certain aspect of matter
The aspect investigated is
- A. radiation
- B. convection
- C. conduction
- D. expansion.
Question 21.
The following are uses of some components of air:
(i) germination
(ii) preserving soft drinks
(iii) electric bulbs
(iv) burning.
Which two uses are for the component that makes up 21% of air?
(ii) preserving soft drinks
(iii) electric bulbs
(iv) burning.
Which two uses are for the component that makes up 21% of air?
- A. (i) and (iii).
- B. (ii) and (iii).
- C. (i) and (iv).
- D. (ii) and (iv).
Question 22.
A pupil was walking towards the northern direction past an air strip and noticed a windvane pointing to her right. In which direction was the wind blowing from?
- A. East.
- B. South.
- C. North.
- D. West.
Question 23.
The diagram below represents a simple electromagnet.
Which of the following energy transformations occur in the electromagnet?
- A. Electrical—> Magnetic —> Chemical.
- B. Chemical —> Magnetic —> Electrical.
- C. Chemical —> Electrical —> Magnetic.
- D. Magnetic —> Chemical —> Electrical.
Question 24.
Vaccines given at birth protect an infant against
- A. diphtheria and tuberculosis
- B. tuberculosis and poliomyelitis
- C. tetanus and diphtheria
- D. whooping cough and poliomyelitis.
Question 25.
Farmers apply farm yard manure to the soil to
- A. improve soil structure
- B. release nutrients needed by plants immediately
- C. provide specific nutrients
- D. provide nutrients ¡n right amounts.
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
​KCPE PAST PAPERS 2012 SCIENCE REPORT
The KCPE Science Syllabus consists of concepts in Agriculture, Science, Home Science and Emerging issues like environment and HIV/AIDS. 2012 was the seventh time the Syllabus was being tested. The questions were sampled from all the topics in the syllabus with all cognitive levels tested.
GENERAL PERFORMANCE OF CANDIDATES
The table below gives a summary on the candidature mean raw mark and standard deviation in Science for the years 2007, 2008, 2009, 2010, 2011 and 2012.
GENERAL PERFORMANCE OF CANDIDATES
| YEAR | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
| NUMBER SAT | 698,367 | 688,049 | 719,376 | 739,620 | 766,712 | 811,706 |
| MEAN RAW MARK | 29.72 | 27.62 | 29.96 | 29.82 | 33.63 | 32.02 |
| STANDARD DEVIATION | 9,20 | 7.40 | 8.69 | 8.94 | 9.11 | 9.51 |
From the table, the year 2012 KCPE Science performance was slightly lower compared to the year 2011 however, there was an improvement in the standard deviation compared to the years 2011, 2010, 2009, 2008 and 2007. This is an indication that the paper fairly discriminated the different abilities of the candidates. The candidature increased by 5.87% in 2012 compared to a 3.66 % increase in 2011.
SYLLABUS COVERAGE
| SN | TOPIC | NO. OF ITEMS | PERCENTAGE |
| 1.0 | HUMAN BODY | 3 | 06 |
| 2.0 | HEALTH EDUCATION | 2 | 04 |
| 3.0 | WEATHER AND ASTRONOMY | 2 | 04 |
| 4.0 | PLANTS | 4 | 08 |
| 5.0 | ANIMALS | 6 | 12 |
| 6.0 | WATER | 3 | 06 |
| 7.0 | MAKING WORK EASIER | 4 | 08 |
| 8.0 | PROPETIES OF MATTER | 8 | 16 |
| 9.0 | ENERGY | 8 | 16 |
| 10.0 | FOOD AND NUTRITION | 4 | 08 |
| 11.0 | ENVIRONMENT | 2 | 04 |
| 12.0 | SOIL | 4 | 08 |
| TOTAL | 50 | 100 |
The number of items per topic is determined by the number of lessons allocated to each topic in the Primary Science Spiral Syllabus.
ANALYSIS OF PERFORMANCE IN SCIENCE ITEMS
​The figure 6 below shows the facility index of each of the 50 Questions offered in 2012 KCPE Science.
Any item scored by 30% and below of the candidates is considered as having been poorly performed. in the 2012 KCPE Science, three items had a facility index below 30%. The three questions and the percentage of candidates choosing the correct response for each are shown in the table below.
Question with a facility Index of 30% and below
| Question Number | 12 | 28 | 49 |
|
% of candidates choosing the correct response |
25.58 | 18.75 | 19.85 |
Question 12
The following arc statements about how different simple machines make work easier.
(i) Making the slope gentle.
(ii) Reducing the effort applied.
(iii) Changing direction of the force applied.
(iv) Reducing friction.
Which of the statements apply to a single fixed pulley?
A. (i) and (iv).
B. (i) and (ii).
C. (ii) and (iii).
D. (iii) and (iv).
(i) Making the slope gentle.
(ii) Reducing the effort applied.
(iii) Changing direction of the force applied.
(iv) Reducing friction.
Which of the statements apply to a single fixed pulley?
A. (i) and (iv).
B. (i) and (ii).
C. (ii) and (iii).
D. (iii) and (iv).
Response Patterns
| OPTION | A | B | C | D* | NO ANSWER |
| % CHOOSING THE OPTION | 7.52 | 7.83 | 57.83 | 25.58 | 1.19 |
| MEAN MARK IN OTHER QUESTIONS | 22.64 | 25.19 | 33.95 | 34.78 | 26.36 |
Single fixed pulleys are taught in class eight under the topic Making Work Easier (Sub-topic Simple Machines). Learners are required to investigate how single fixed pulleys make work easier. A single fixed pulley only makes work easier by changing the direction of the force applied, it is easier to pull the load downwards than upwards because of the force of gravity. The effort applied is equal to the load if friction is completely eliminated at the axle. Otherwise more effort than load is applied if some friction exists in the pulley.
Many candidates went for an incorrect response (option C) although (ii) (reducing the effort applied) makes the option wrong. The effort applied in an ideal pulley is equal to the load.
In the key (option D), (iv) (reducing friction) is correct because the pulley rotates at (he axle with the main aim of eliminating friction. Fewer candidates (25.58%) chose the correct response but those who selected it were the very bright with a raw mean mark of 34.78.
Instruction in schools should target the objective which clearly states that the candidates are required to know the principle on which a single fixed pulley works. Performance on this item indicates that the objective may not have been adequately addressed during instruction.
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Question 28
Which of the following practices will NOT result in a person getting an electric shock?
- A. Touching sockets with wet hands.
- B. Putting pencils in sockets.
- C. Overloading the sockets.
- D. Putting iron nails in sockets.
Response Patterns
| OPTION | A | B | C* | D | NO ANSWER |
| % CHOOSING THE OPTION | 7.16 | 61.82 | 18.75 | 11.01 | 1.2 |
| MEAN MARK IN OTHER QUESTIONS | 23.79 | 33.22 | 32.87 | 29.71 | 26.94 |
The Question was from the topic Energy (sub-topic Electricity). Learners are required to investigate good and poor conductors of electricity, and describe safety measures when dealing with electricity. Many candidates also went for an incorrect response (option B) including the very bright ones as indicated by the high raw mean mark of 33.22 compared to 32.87 of those who selected the correct response (option C). Most pencils are made of wood and graphite. Wood is a poor conductor while graphite is a good conductor. Most candidates could have looked at a pencil as wood and ignored graphite leading to the selection of the incorrect response.
On safety measures, the learner is required to describe safety measures when dealing with electricity. One of the safety measures is not to put pencils into sockets. The likely description to accompany it is that it can cause electric shock and damage the socket.
Candidates may have missed these details during instruction and this could have led to the observed performance on the item.
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Question 49
Which one of the following statements is TRUE about manures? They
- A. increase the growth of weeds
- B. release specific nutrients to the soil
- C. destroy micro-organism in the soil
- D. cause pollution of the soil.
Response Patterns
| OPTION | A* | B | C | D | NO ANSWER |
| % CHOOSING THE OPTION | 19.85 | 68.5 | 7.82 | 2.43 | 1.34 |
| MEAN MARK IN OTHER QUESTIONS | 36.03 | 32.06 | 24.94 | 23.58 | 26.90 |
The Question was from the topic Soil (sub-topic Manures). Most candidates (68.5%) went for an incorrect response (option 13). Manures do not release specific nutrients. They release a variety of plant nutrients that are not specific. This is the main difference between manures and inorganic fertilizers which should be emphasized during instruction. However, the correct response was chosen by the bright candidates.
​GENERAL COMMENTS
Generally 2012, KCPE Science was well done with a Mean raw mark of 32.02 out of the possible 50 marks. The Mean raw mark for females was 30.30 compared to 31.99 in 2011. The one for males was 33.67 compared to 35.55 in 2011. Teachers should strive to bridge this gap by using approaches that motivate female pupils towards sciences at an early stage in learning. The gap should be adequately addressed at this level to ensure that it is not carried to the next levels of learning.
​KCPE PAST PAPERS 2012: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]
Question 26.
A card made in the shape of letter E and numbers 1,2 and 3 written on it was placed in front of a mirror as shown in the diagram below.
Which of the following CORRECTLY represents the image as seen in the mirror?
Question 27.
The reason why improved jikos have a clay lining is to
- A. reduce the amount of heat loss
- B. reduce the space for charcoal
- C. make charcoal light faster
- D. make the jiko last longer.
Question 28.
Which of the following practices will NOT result in a person getting an electric shock?
- A. Touching sockets with wet hands.
- B. Putting pencils in sockets.
- C. Overloading the sockets.
- D. Putting iron nails in sockets.
Question 29.
Which of the following groups of sources of energy are renewable?
- A. charcoal, kerosene, sawdust.
- B. water, firewood, animal dung.
- C. Diesel, wind, natural gas.
- D. Biogas, petrol, coal.
Question 30.
Which of the following pairs of food is preserved by smoking, salting and drying?
- A. Meat and mushrooms.
- B. Beans and fish.
- C. Mushrooms and beans.
- D. Meat and fish.
Question 31.
Which of the following is the MAIN reason why eating bread after expiry date is discouraged? The bread could have
- A. lost nutrients
- B. a bad taste
- C. some micro-organisms
- D. changed its colour.
Question 32.
Which of the following pairs consists of diseases caused by lack of minerals in the diet?
- A. Anaemia and rickets.
- B. Kwashiokor and anaemia.
- C. Marasmus and Kwashiokor.
- D. Rickets and marasmus.
Question 33.
A hilly area with deep channels is LIKELY to be experiencing
- A. sheet erosion
- B. gulley erosion
- C. nil erosion
- D. splash erosion.
Question 34.
The diagram below shows an improvised rain gauge.
The collecting bottle should
- A. have the funnel sealed to its mouth
- B. be wide to collect enough water
- C. be placed above the ground
- D. be transparent for easy reading.
Question 35.
The diagram below represents a model of the solar system prepared by class six pupils.
The mistake made in the model was
- A. using threads instead of wires
- B. placing a ball of clay next to the one representing the sun
- C. placing two balls of clay on one thread
- D. using balls of clay of different sizes.
Question 36.
The MAIN reason why mothers are encouraged to breast feed their infants is because breast milk
- A. boosts immunity of the infant
- B. is free from disease causing germs
- C. is at the right temperature for infants
- D. is easily digested by infants.
Question 37.
A person in the incubation period of HIV infection will show
- A. signs and symptoms but test negative
- B. no signs and no symptoms but test positive
- C. no signs, no symptoms and test negative
- D. signs, symptoms and test positive.
Question 38.
Which of the following is a preventive measure against the spread of tuberculosis?
- A. Clearing bushes around houses.
- B. Boiling drinking water.
- C. Proper disposal of human waste.
- D. Living in a well ventilated house.
Question 39.
In which of the following are characteristics of cumulus and nimbus clouds CORRECTLY placed?
Question 40.
For two masses X and Y, the mass of X was twice that of Y. The diagram below shows a set-up that was used to investigate how thetwo masses balance at positions Q, R, S and T on a seesaw.
Which of the following was a correct observation about the investigation?
Question 41.
The diagram below represents a simple electric circuit
Which of the following energy transformations would take place when the switch is on?
- A. Chemical—>electrical——>heat—>light.
- B. Electrical—>chemical—>Light--->heat.
- C. Chemical—>electrical——>Light--->heat.
- D. Electrical—>light—>chemical—>heat.
Question 42.
Which of the following practices LEAST pollutes the soil?
- A. Spraying crops to kill pests.
- B. Burning plant wastes in the farm.
- C. Disposing of animal wastes in the farm.
- D. Burying plastics in the soil.
Question 43.
In an investigation, equal amounts of soap was added to equal amounts of water samples W and Z obtained from different sources.
The following observations were made:
(i) W formed lather.
(ii) Z formed suspended particles.
Which of the following statements about W and Z is NOT CORRECT?
(i) W formed lather.
(ii) Z formed suspended particles.
Which of the following statements about W and Z is NOT CORRECT?
- A. W may have fewer minerals.
- B. Z may form lather after boiling.
- C. W can form scales in kettles.
- D. Z wastes soap when washing.
Question 44.
Which of the following consists of materials with a definite volume and definite shape?
- A. Water, bottle, stone.
- B. Paper, pin, ink.
- C. Kerosene, cooking oil, milk.
- D. Sand, flour, sugar.
Question 45.
Which of the following practices will conserve soil?
- A. Using dry grass for mulching.
- B. Burning vegetation on farms.
- C. Ploughing along the slope.
- D. Burying plastic materials.
Question 46.
Soil becomes waterlogged due to
- A. its colour
- B: the size of its particles
- C. the absence of small animals in it
- D. the amount of air in it.
Question 47.
Which of the following is the CORRECT procedure that is used to obtain clear water from muddy water?
- A. Filtering and decanting.
- B. Evaporating and filtering.
- C. Decanting and filtering.
- D. Evaporating and decanting.
Question 48.
- A. Spraying and de-worming.
- B. Herding and dipping.
- C. De-worming and rotational grazing.
- D. Dipping and spraying.
Question 49.
​Which one of the following statements is TRUE about manures? They
- A. increase the growth of weeds
- B. release specific nutrients to the soil
- C. destroy micro-organism in the soil
- D. cause pollution of the soil.
Question 50.
The following are activities that pollute the environment.
(i) Burning charcoal in a closed room.
(ii) Oil spillage from tankers.
(iii) Using diesel as fuel in vehicles.
(iv) Dumping vegetable waste.
Which activities pollute air?
(ii) Oil spillage from tankers.
(iii) Using diesel as fuel in vehicles.
(iv) Dumping vegetable waste.
Which activities pollute air?
- A. (i) and (iv).
- B. (ii) and (iv).
- C. (ii) and (iii).
- D. (i) and (iii).
​KCPE PAST PAPERS 2012: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]
Question 01.
Which of the following is a tuber crop?
- A. Onion.
- B. Carrot.
- C. Pineapple.
- D. Cabbage.
Question 02.
A beam balance is used for
- A. measuring volume of objects
- B. comparing mass of different objects
- C. measuring height of objects
- D. comparing size of different objects.
Question 03.
In which of the following groups of activities is friction NOT required?
- A. Writing and erasing.
- B. Skating and braking.
- C. Flying and swimming.
- D. Walking and riding.
Question 04.
Animals provide plants with
- A. support and carbon dioxide
- B. manure and oxygen
- C. carbon dioxide and pollination
- D. pollination and oxygen.
Question 05.
Which of the following statements about blood vessels in the human body is CORRECT?
- A. All veins carry de-oxygenated blood.
- B. Blood pressure in arteries is higher than in veins.
- C. Arteries have valves that control flow of blood.
- D. Arteries have thinner walls than those of veins.
Question 06.
Which of the following CORRECTLY represents the path taken by food from the oesophagus?
- A. Stomach —> small intestines —> large intestines —> rectum —> anus.
- B. Small intestines —> large intestines —>stomach —> rectum —> anus.
- C. Stomach —> large intestines —> small intestines —> rectum ----> anus.
- D. Large intestines —> stomach ---> small intestines —> rectum —> anus.
Question 07.
Which of the following types of human teeth is CORRECTLY matched to its function?
Teeth Function
- A. Incisors Tearing and cutting.
- B. Canines Tearing and crushing.
- C. Premolars Cutting and grinding.
- D. Molars Crushing and grinding.
Question 08.
A plant which has deep and widely spread root system is LIKELY to have
- A. broad leaves
- B. many leaves
- C. succulent stems
- D. weak stems.
Question 09.
Which of the following groups of crops consists of cereals ONLY?
- A. Peas, beans and green grams.
- B. Maize, rice and sorghum.
- C. Millet, cow peas and maize.
- D. Green grams, sorghum and rice.
Question 10.
The diagrams below represent two levers E and F with different positions of load, effort and fulcrum.
Question 11.
Which of the following pairs of plants is CORRECTLY matched with the type of root system?
Tap root Fibrous root
- A. Grass Wheat
- B. Tomato Blackjack
- C. Coconut Acacia
- D. Kale Onion
Question 12.
The following are statements about how different simple machines make work easier.
(i) Making the slope gentle.
(ii) Reducing the effort applied.
(iii) Changing direction of the force applied.
(iv) Reducing friction.
Which of the statements apply to a single fixed pulley?
(ii) Reducing the effort applied.
(iii) Changing direction of the force applied.
(iv) Reducing friction.
Which of the statements apply to a single fixed pulley?
- A. (i) and (iv).
- B. (i) and (ii).
- C. (ii) and (iii).
- D. (iii) and (iv).
Question 13.
Which of the following groups of animals consists ONLY of invertebrates?
- A. Crab, newt and snail.
- B. Centipede, snail and spider.
- C. Newt, centipede and slug.
- D. Slug, frog and crab.
Question 14.
Which of the following statements is TRUE?
- A. Fish have constant body temperature.
- B. Birds have varying body temperature.
- C. Young ones of amphibians live on land.
- D. Reptiles breathe through the lungs.
Question 15.
Which of the following are examples of herbivores, carnivores and omnivores?
Question 16.
Which of the following pairs consists only of animals with scales?
- A. Toad and duck.
- B. Turtle and salamander.
- C. Turtle and duck.
- D. Salamander and toad.
Question 17.
The following are some practices that help prevent the spread of water borne diseases.
(i) Using toilets for urination.
(ii) Washing fruits before eating them.
(iii) Washing hands before eating.
(iv) Wearing gumboots when walking in stagnant water.
Which practices will help control the spread of bilharzia?
(ii) Washing fruits before eating them.
(iii) Washing hands before eating.
(iv) Wearing gumboots when walking in stagnant water.
Which practices will help control the spread of bilharzia?
- A. (i) and (ii)
- B. (i) and (iv)
- C. (ii) and (iii)
- D. (iii) and (iv)
Question 18.
Transfer of heat by convection takes place in
- A. gases and liquids
- B. solids and liquids
- C. solids and vacuum
- D. gases and vacuum.
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Question 19.
The diagram below represents the processes I, II, III and IV that are involved in change of states of matter.
Question 20.
The pie chart below shows proportions of G, H, J and K that represent the components of air.
Question 21.
Which of the following factors makes wax to float on water?
- A. Shape of material.
- B. Type of material.
- C. Size of material.
- D. Mass of material.
Question 22.
In which of the following are both materials CORRECTLY grouped as magnetic and non-magnetic?
Magnetic Non-magnet
- A. Copper Zinc.
- B. Zinc Steel.
- C. Aluminium Copper.
- D. Steel Aluminium.
Question 23.
The following are activities carried out to investigate the effect of heat on a liquid.
(i) Placing the bottle on a source of heat.
(ii) Filling the bottle with coloured water.
(iii) Fixing a straw on the cork.
(iv) Closing the bottle tightly with the cork.
Which one of the following is the CORRECT ORDER of the activities?
(ii) Filling the bottle with coloured water.
(iii) Fixing a straw on the cork.
(iv) Closing the bottle tightly with the cork.
Which one of the following is the CORRECT ORDER of the activities?
- A. (ii), (iii), (iv), (i).
- B. (iii), (iv), (ii), (i).
- C. (ii), (i), (iii), (iv).
- D. (iii), (ii), (i), (iv).
Question 24.
The diagram below shows a set-up that can be used to investigate the effect of heat on matter.
The effect investigated is
- A. gases change state when heated
- B. solids expand when heated
- C. gases expand when heated
- D. solids change state when heated.
Question 25.
The diagram below represents a set-up in which a ruler is fixed to a desk and its free end pulled to positions L, M, and N. At each position the free end is released to produce sound.
The set-up can be used to investigate
- A. special sounds
- B. loud and soft sound
- C. direction of sound
- D. noise pollution.
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