KCPE PAST PAPERS 2013: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]

​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?

• 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.

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?

• 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

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