Tuesday, 30 August 2022 07:05

Science Questions and Answers KCPE 2022 Prediction Papers Set 4

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  1. Which one of the following is not a function of the amniotic fluid?
    1. Allows for the free movement of the foetus.
    2. Prevents the foetus from shock.
    3. Moistens the foetus.
    4. Provides food nutrients to the foetus.
  2. Which of the following is not a sexually transmitted infection?
    1. Bilharzia
    2. Chancroid
    3. Syphilis
    4. Gonorrhea.
  3. Blood from the lungs enters the heart through the
    1. aorta
    2. pulmonary artery
    3. vena cava
    4. pulmonary vein
  4. Which of the following crop pests makes large holes in leaves?
    1. Weevils
    2. Weaver birds
    3. Aphids
    4. Cutworms.
  5. The following are some of the effects of drug abuse.
    1. Unconsciousness
    2. Brain damage.
    3. Poor relationship with family members.
    4. Rape.
      Which pair consists of the social effects of drug abuse?
      1. (i) and (iii)
      2. (i) and (ii)
      3. (iii) and (iv)
      4. (ii) and (iv)
  6. Which of the following parts of the reproductive system produces sex cells?
    1. Vagina and penis.
    2. Testis and ovary.
    3. Uterus and urethra.
    4. Oviduct and penis
  7. The diagram below shows parts of a bean seed.
    Which letter represents the seed leaves?
    1. M
    2. L
    3. N
    4. O
  8. The chart below shows classification of plants.
    Which group of plants were wrongly classified?
    1. Carrot, kales, wandering jew
    2. Kales, bananas, fern.
    3. Fir, banana, fern.
    4. Wandering jew, carrot, fir.
  9. During a Science practical lesson, class six pupils put maize seeds in boiled water and added to it a layer of cooking oil. What condition necessary for germination were they investigating?
    1. Warmth
    2. Moisture
    3. Light
    4. Air.
  10. Mass is measured using a
    1. spring balance
    2. newton
    3. standard weight
    4. weighing scale
  11. Which one of the following is not a living component of the environment?
    1. Earthworms
    2. Cactus
    3. Water
    4. Bacteria.
  12. Class four pupils put soil in a clear container and added water. They stirred the mixture then left it to settle. They investigated all the following components except
    1. air
    2. mineral particles
    3. water
    4. organic matter
  13. The diagram below shows a compost heap.
    Which letter represents the layer that consists of the old compost manure?
    1. Y
    2. X
    3. W
    4. Z
  14. A mixture of husks and maize flour can be best separated by
    1. filtering
    2. sieving
    3. winnowing
    4. decanting.
  15. What is the total percentage of the two gases used by plants to make food?
    1. 1.0%
    2. 78.03%
    3. 21.03% 
    4. 99%
  16. The diagram below shows a simple tool.
    Which pair of letters represents parts on which friction has to be increased for the lever to work effectively?
    1. G and E
    2. F and E
    3. G and H
    4. J and F
  17. Rollers are used to
    1. reduce the weight of an object
    2. reduce the force that hinders motion
    3. increase the friction of an object
    4. reduce the mass of an object
  18. Which one of the following is the third step when modelling the solar system?
    1. Pasting manila paper on the soft board.
    2. Modelling the sun and the planets.
    3. Drawing circles to represent the orbit.
    4. Pasting name tags against each planet.
  19. The diagram below shows a simple weather instrument.
    The weather instrument above works under the principle that
    1. air exerts pressure
    2. air is a good conductor of heat
    3. liquids contract when cooled
    4. matter expands when heated.
  20. Which one of the following is not an effect of parasites on livestock?
    1. Irritation.
    2. Poor quality products.
    3. Increased appetite.
    4. Anaemia.
  21. Which one of the following is the most expensive method of grazing?
    1. Strip grazing.
    2. Herding
    3. Paddocking.
    4. Stall feeding.
  22. The following are signs and symptoms of certain water-borne diseases.
    1. Blood in urine and faeces
    2. Muscular pains.
    3. Red spots on the chest.
    4. Itching at the anus.
      Which ones are not signs of typhoid?
      1. (ii) and (iii)
      2. (i) and (iv)
      3. (ii) and (iv)
      4. (i) and (iii)
  23. Which of the following methods of food preservation works the same way as use of honey?
    1. Smoking
    2. Refrigeration
    3. Salting
    4. Drying.
  24. Which one of the following is a common characteristic in rat, duck and gecko?
    1. They lay eggs.
    2. Their bodies are covered with scales.
    3. They have constant body temperature
    4. They breathe through lungs.
  25. After fertilization, all the following parts of a flower dries up except the
    1. style
    2. petals
    3. sepals
    4. stigma.
  26. Which of the following is not an immunizable disease?
    1. Hepatitis B 
    2. Bilharzia
    3. Measles
    4. Tuberculosis
  27. The following are importance of taking a HIV test except that it helps
    1. in administering proper treatment
    2. to know one’s status
    3. in behavioural change
    4. to overcome fear.
  28. Which one of the following food nutrients is not absorbed in the intestine?
    1. Fats and oils.
    2. Carbohydrates
    3. Proteins
    4. Calcium.
  29. Standard six pupils poured water on a flat soil surface. They used a bottle which had a hole in the lid as shown below.
    Which type of erosion were they likely to be investigating?
    1. Rill erosion
    2. Gulley erosion
    3. Splash erosion
    4. Sheet erosion.
  30. In a convection box, a burning candle is mainly used to
    1. produce smoke
    2. light the box
    3. warm the air
    4. colour the air.
  31. Which one of the following is a poor conductor of electricity?
    1. Pencil
    2. Razor blade
    3. Copper iron
    4. Marble.
  32. All the following animals have the same way of movement except
    1. scorpion
    2. cockroach
    3. ant
    4. chicken.
  33. Which of the following liquids are correctly classified?
       Immiscible   Miscible 
    A  Petrol, cooking oil   Spirit, diesel
    B  Milk, kerosene  Ink, water
    C   Water, milk  Spirit, kerosene
    D   Petrol, ink  Diesel, milk
  34. Water vapour has definite
    1. density
    2. mass
    3. volume
    4. shape.
  35. Two pieces of stones were placed in tins and balanced on a see-saw as shown below.
    What is likely to happen if stone J is broken into small pieces?
    1. K will move upwards.
    2. J will move downwards.
    3. The see-saw will tilt towards K.
    4. There will be no change
  36. Which one of the following is the best way of controling both external and internal livestock parasites?
    1. Clearing bushes around the farm.
    2. Practising rotational grazing.
    3. Deworming.
    4. Dipping and spraying.
  37.  All the following are characteristics of cumulus clouds except that they
    1. indicate fine weather
    2. appear low in the sky
    3. have flat base
    4. look like bundles of cotton wool.
  38. The following are all excretory products except
    1. excess salt
    2. lactic acid
    3. faeces
    4. carbon dioxide.
  39. Which of the following water pollutants is likely to increase the growth of water weeds?
    1. Oil spillage.
    2. Floods.
    3. Excess farm chemicals.
    4. Raw industrial sewage.
  40. The diagram below shows parts of the skin.
    Which letter represents the part that produces sweat?
    1.  H 
    2. G
    3. E
    4. F
  41. A patient with pale eyes and rapid heartbeat should take a diet rich in
    1. calcium
    2. iron
    3. proteins
    4. fibres and water.
  42. Which of the following animal feeds is not suitable to use as pasture?
    1. Desmodium
    2. Napier grass
    3. Lucerne
    4. Kikuyu grass
  43.  A mouse was seen basking in the sun. It is true to say that the body temperature of the mouse
    1. rose
    2. dropped
    3. dropped and then rose steadily
    4. did not change.
  44.  Which one of the following is not a fibre crop?
    1. Sunflower
    2. Sisal
    3. Cotton
    4. Flax
  45. Which one of the following is not true about the first stage of HIV infection?
    1. It has no visible signs.
    2. The patient has no AIDS.
    3. HIV shows positive results.
    4. It is most dangerous stage.
  46. Which one of the following is not a function of the largest component of blood?
    1. Maintains blood pressure.
    2. Suspends red blood cells.
    3. Transports waste products.
    4. Helps in clotting of blood.
  47. The following materials are needed when investigating refraction of light except
    1. pencil
    2. water
    3. mirror
    4. coin.
  48. Which one of the following is not a source of heat?
    1. Moon
    2. Sun
    3. Electricity
    4. Gas.
  49. Which of the following groups of materials cannot sink in water?
    1. Marble, feathers and paper.
    2. Stone, rice and pin.
    3. Leaf, bottle and wire.
    4. Wood, leaf and rubber.
  50. Class five pupils placed a glass full of ice cubes in the sun.
    Which of the following processes did not take place after some time?
    1. Melting.
    2. Expansion.
    3. Evaporation.
    4. Condensation.

Marking Scheme

  1. D
  2. A
  3. D
  4. C
  5. C
  6. B
  7. A
  8. B
  9. D
  10. D
  11. C
  12. C
  13. D
  14. C
  15. B
  16. D
  17. B
  18. C
  19. D
  20. C
  21. D
  22. B
  23. A
  24. D
  25. C
  26. B
  27. A
  28. D
  29. C
  30. C
  31. D
  32. A
  33. B
  34. B
  35. D
  36. B
  37. B
  38. C
  39. B
  40. A
  41. B
  42. B
  43. D
  44. A
  45. C
  46. D
  47. C
  48. A
  49. D
  50. D

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