Tuesday, 30 August 2022 07:01

Science Questions and Answers KCPE 2022 Prediction Papers Set 3

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  1. Objects like wax, plastic and wood normally float on water. This is possible because of their?
    1. Size
    2. Material
    3. Shape
    4. Weight
  2. To protect themselves from noise pollution, workers in noisy factories are provided with
    1. Ear buds
    2. Gas masks
    3. Ear plugs
    4. Ear phones
  3. Which one of the following animal feeds is a source of proteins?
    1.  Lucerne
    2. Grass
    3. Molasses
    4. Sweet potato vines
  4. Cirrhosis is a disease of the liver which is commonly caused by excessive use of
    1. smoking of tobacco
    2. drinking of beer
    3. chewing of miraa
    4. inhaling of cobbler's glue
  5. One of the following animal parasites cannot be controlled by drenching or dosing, which one is it?
    1. Round worms
    2. Lung worms
    3. Liver fluke
    4. Tsetse flies
  6. Which one of the following substances have definite size and shape?
    1. Wax and steam
    2. Petrol and oxygen
    3. Stone and glass
    4.  Milk and water
  7. Study the diagram below of a simple rain gauge.
    The part marked T is placed underground mainly to
    1. prevent evaporation of collected water
    2. collect as much rain water as possible
    3. make it durable
    4. prevent the container from direct sunlight
  8. Which one of the following is not an air pollution?
    1. Loud music
    2. Aerosal sprays
    3. Excessive dust
    4. Farm Yard Manure
  9. In which one of the following pairs of levers is the fulcrum between the load and the effort when they are in use?
    1. Wheelbarrow and space
    2. Claw hammer and wheel barrow
    3. Crow bar and spade
    4. Crow bar and claw hammer
  10. Which one of the following statements is true about platypus, bat, ostrich and toad. All of them
    1. breath through lungs
    2. give birth to young ones
    3. have body temperatures that varies with the surrounding
    4. spend part of their life on dry land
  11. The following are ways in which plants adjust themselves to grow in various habitat:
    1. Succulent
    2. Flexible stems
    3. Thick and waxy cuticles
    4. Spongy stems
    5. Needle-like leaves
      Which set of adjustments are for plants suitable to grow in dry areas?
      1.  ii.iv.v 
      2. i, iii,v
      3. ii,iii, iv 
      4. ii,i,iv
  12. Which one of the following is not correct statement about the force that opposes motion? The force
    1. produces unwanted heat
    2. increase the effort required for moving a load
    3. makes the load lighter
    4. can be reduced by using rollers.
  13. The transfer of heat by convection is possible through
    1. gases only
    2. liquid and gases
    3. solids and liquids
    4. gases and vacuum
  14. The diagram below shows an improved jiko.
    The part marked T is made of clay in order
    1.  make the jiko durable
    2. make the charcoal light faster
    3. reduce the space for charcoal
    4. reduce the amount of heat loss
  15. The following are characteristics of a certain type of cloud:
    1. Flat-bottomed
    2. High in the sky
    3. White in colour
      Which statement below is true?
      1. The characteristics are for nimbus clouds
      2. The cloud gives rise to rainfall
      3. The cloud also looks like mountains
      4. This type of cloud also looks like bundles of cotton
  16.  Which of the following is not an excretory organ?
    1. Kidney
    2. Skin
    3. Anus
    4. Lungs
  17. Class five pupils of Jamhuri Primary School did an experiment. They dropped some pieces of papers on burning flames of fire. What were they investigating?
    1. Convection in liquid
    2. Gases occupy space
    3. Air in motion
    4. Convection in gases
  18. Which one of the following vaccine is correctly matched with when it is administered? Vaccine When administered
      Vaccine  When administered
     1st DPT   At birth
    B  2nd Polio vaccine  10 weeks
    C  3rd Hepatitis B  14 weeks
    D  3rd DPT   14 weeks
  19. Which one of the following components of the environment do plants and animals depend on directly for their survival?
    1. Soil and water
    2. Air and soil
    3. Water and air
    4. Air only
  20. The amount of matter in a substance is measured using all the following units except
    1. Grammes
    2. Kilograms
    3. Newtons
    4. Tonnes
  21. A certain weed was observed with the following characteristics
    1. Purple flowers
    2. Thorns on the stems
    3. Yellow fruits when ripe
      The weed was likely to be
      1. thorn apple
      2. wandering jew
      3. oxalis
      4. sodom apple
  22. Which of the following pair processes involves loss of heat to the surrounding?
    1. Freezing and melting
    2. Melting and evaporation
    3. Freezing and condensation
    4. Condensation and evaporation
  23. Which one of the following practices is an economical way of using water?
    1. Harvesting rain water
    2. Mulching and shading
    3. Constructing dams to collect rain run off water
    4. Practising drip irrigation
  24. The following are social effects of drug abuse except
    1. truancy
    2. lack of concentration
    3. drug induced accidents
    4. marital conflicts
  25. In a food chain, which of the following organism is a secondary consumer?
    1. Cabbage
    2. Grasshopper
    3. Hawk
    4. Chicken
  26. The following crop pests are correctly matched with the part of the crop they attack except Crop pest Part attacked
    Crop pest Part attacked
    1. Stalk borer Stem
    2. Army worm Leaves
    3. Aphids Seeds
    4. Cutworm Stems
  27. Which of the following pollutes both water and soil?
    1. Oil spillage
    2. Controlled use of farm chemicals
    3. Domestic wastage
    4. Industrial waste gases
  28. The chart below represents the characteristics of amphibians, fish and reptiles.
    What do N and O represent?
    1. Laying eggs Warm blooded
    2. Live in water Scales
    3. Cold blooded Breath by lungs
    4. Scales Cold blooded
  29. As Mame Brian was chopping potatoes she cut her finger with a knife. Which component of blood helped to stop the bleeding?
    1. Plasma
    2. Platelets
    3. White blood cells
    4. Red blood cells
  30. Which one is not a use of water in recreation?
    1. Irrigation
    2. Boat racing
    3. Surfing
    4. Swimming
  31. Which one of the following is a nonluminous source of light?
    1. Moon 
    2. Sun
    3. Stars
    4. Fire flies
  32. The pie chart below shows a composition of air.
    Which letter represent the part used by premature born babies in incubators?
    1. W
    2. K
    3. Q
  33. Below are statements about second class levers. Which one is correct?
    1. Load distance is equal to effort distance
    2. Load distance is always greater than effort distance
    3. Effort distance is always greater than load distance
    4. Effort distance is always twice the load distance
  34. Which one is not a minor plant nutrient?
    1. Chlorine
    2. Carbon
    3. Iron
    4. Manganese
  35. Expectant mothers mainly feed on food rich in calcium and vitamin D for?
    1. Help to prevent rickets to the foetus
    2. Providing energy to the foetus
    3. For proper bones formation of the foetus
    4. For growth and development of the foetus
  36. Which one of the following is observed in a container that has been used to boil hard water?
    1. Scum
    2. Bubbles
    3. Fur
    4. Soap deposits
  37. The diagram below shows a glass which was put inside another glass and got stuck.
    What should be done to separate the two glasses?
    1. Put the glasses into boiling water
    2. Put hot water in the inner glass
    3. Put the glass in cold water
    4. Immerse the outer glass in hot water
  38. A simple electric circuit should have the following except
    1. bulb 
    2. fuse
    3. wires
    4. dry cells
  39. The amount of space occupied by a body is its
    1. mass
    2. pressure
    3. volume
    4. weight
  40. The diagram below shows a home-made water filter
    Which of layer represents charcoal?
    1. J
    2. M
  41. The following are problems related to teeth except
    1. bad breath
    2. bleeding gums
    3. dental floss
    4. cavities
  42. The following are ways of maintaining simple tools except
    1. oiling
    2. cleaning tools after use
    3. sharpening cutting tools
    4. using them regularly
  43. Which one of the following livestock parasites attacks only the small intestines?
    1. Hookworms 
    2. Lungworms
    3. Tapeworms
    4. Roundworms
  44. Which of the following mixtures can be separated by dissolving, filtering and evaporation?
    1. Iron fillings, flour and salt
    2. Salt and sugar
    3. Kerosene, water and turpe ntine
    4. Sand and sugar
  45. The diagram below represents a set up that is used to investigate a certain aspect of light.
    The aspect investigated is
    1. light travels in a straight line
    2. refraction
    3. reflection
    4. passage of light through materials
  46. Large furrows in the soil indicate
    1. rill erosion
    2. gulley erosion
    3. splash erosion
    4. sheet erosion
  47. Which one of the following helps us to drink using a straw?
    1. Force of gravity 
    2. Adhesion
    3. Capillarity
    4. Air pressure
  48. The best method of controlling human intestinal worms is by
    1. deworming
    2. vaccination
    3. rotational grazing
    4. proper sanitation
  49. Standard four pupils set up the experiment shown below.
    The pupils concluded that pressure in liquids
    1. increase with depth
    2. decrease with height
    3. is equal at the same height
    4. is the same in all directions
  50. A fish is able to remain a float on water even if it is not swimming due to the presence of
    1. lateral line
    2. air bladder
    3. air sacs 
    4. fins

Marking Scheme

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