KCPE PAST PAPERS 2012: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]

​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?

• 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?

• 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.

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?

• 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.

MORE STD 8 REVISION RESOURCES

• https://drive.google.com/open?id=1cdxLC-nRPWN1S47IUQNNEB81Aoar4AaT
• https://www.atikaschool.org/kcpe-past-papers-and-answer/kcpe-2012-past-papers-answers-and-reports

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