Science Questions and Answers - KCPE 2023 Prediction Papers Set 3

1. Which one of the following takes place during breathing in?
   1. Lungs contract
   2. Diaphragm flattens
   3. Ribs move downwards
   4. Diaphragm become dome-shaped
2. Below is a cross-section of a certain excretory organ.
   
   The correct names for the parts marked E, F, G and H respectively are
   1. kidney, ureter, bladder, urethra
   2. kidney, urethra, bladder, ureter
   3. bladder, ureter, kidney, urethra
   4. bladder, urethra, kidney, ureter
3. Which pair of diseases below can be prevented by administering DPT?
   1. Cholera and diphtheria
   2. Tuberculosis and diphtheria
   3. Whooping cough and tetanus
   4. Polio and yellow fever
4. Which one of the following is a social effect of drug abuse?
   1. Rape
   2. Withdrawal
   3. Hallucination
   4. Fits
5. The following materials can be used to construct a certain weather instrument:
   1. Stiff polythene
   2. A wooden pole
   3. String
   4. Glue
      The weather instrument likley to be constructed is
      1. air thermometer
      2. windvane
      3. windsock
      4. raingauge
6. Three of the following are ways of reducing the force that opposes motion. Which one is not?
   1. Lubrication
   2. Streamlining bodies
   3. Plaining surfaces
   4. Applying treads
7. The first and second planets respectively from the earth are
   1. Mars and Jupiter
   2. Mercury and Venus
   3. Mercury and Earth
   4. Mars and Saturn
8. In the food chain below which animal can best fit at the place marked Z?
   Grass → Antelope → Z→ Bacteria
   1. Leopard
   2. Hippopotamus
   3. Elephant
   4. Chimpanzee
9. The most appropriate way of managing plastic and glass materials is by
   1. re-using
   2. recycling
   3. burning them
   4. burying them
10. Brian a Science teacher, set-up the experiment represented below.
    
    Which component of soil was the teacher investigating?
    1. Water
    2. Living organism
    3. Humus
    4. Air
11. During a thunderstorm, pupils from Neema Academy were observed:
    1. Playing on the footbal pitch
    2. Lying on the floor in the classroom
    3. Wearing red sweaters in a classroom
    4. Sheltering under the verandah
       In which pair of observations are the pupils most likely to be struck by lightning?
       1. i and iv
       2.  ii and iv
       3. i and iii
       4. ii and iii
12. Which one of the following shows a pair of sources of electricity?
    1. Bicycle dynamo and car battery
    2. Water turbines and the sun
    3. Dry cells and wind turbines
    4. Torch cells and car battery
13. The following are methods of controlling livestock parasites. Which one controls both internal and external parasites?
    1. Rotational grazing
    2. Spraying
    3. Deworming
    4. Drenching
14. All the following are methods of grazing. Which one is not?
    1. Strip grazing
    2. Rotational grazing
    3. Herding
    4. Stall feeding
15. Mikah a standard seven pupil from Viscot Primary School mixed some pieces of chromium, salt and sand. Which one of the following processes of separation did he apply first?
    1. Filtration
    2. Use of magnet
    3. Hand picking
    4. Evaporation to dryness
16. The following are adaptation of plants growing in the dry areas. Which one is not?
    1. Succulent stem
    2. Deep roots
    3. Few stomata
    4. Flexible stems
17. The following are characteristics of a certain animal:
    1. It breathes through the lungs
    2. Its body temperature varies
    3. It has a moistened body
    4. It has external fertilisation
       The animal described above is most likely to be
       1. gecko
       2. turtle
       3. newt
       4. trout
18. The following activities will pollute water except
    1. oil spillage on water
    2.  Excess usage of fertilizers on land
    3. Fumes from the factory chimney
    4. Untreated sewages towards rivers
19. Which one of the following materials will not form a shadow when light is shown on it?
    1. White paper
    2. Mirror
    3. Glass of lamp
    4. A piece of wood

The diagram below represents a female reproductive system.

20. Which one of the parts labelled A, B, C and D is not correctly matched to its function?
    

    Part	Function
    A	Facilitates fertilization
    B	Nourishment of the baby
    C	Allows sperm deposits
    D	Ovulation

21. The third stage of HIV infection is known as
    1. incubation
    2. symptomatic
    3. asymptomatic
    4. window
22. Which one of the following diseases can be prevented by draining stagnant water around homestead?
    1. Malaria
    2. Cholera
    3. Typhoid
    4. Tuberculosis
23. Which one of the following groups consists only of foods that will help prevent kwashiorkor?
    1. Bread, cowpeas, green grams
    2. Cabbage, eggs, rice
    3. Fish, eggs, beans
    4. Maize, beans, spinach
24. A certain lever when in use can work with load, efort and fulcrum at different positions. The lever is likely to be
    1. crowbar
    2. claw hammer
    3. wheelbarrow
    4. spade
25. Which one of the following is true about whale? It has
    1. scales
    2. gills
    3. varying body temperature
    4. constant body temperature
26. Some pupils mixed liquids E, F and G. Liquid E mixed with liquid F. Liquid G did not with liquid E and F. Which one of the following correctly represents liquids E, F and G respectively
    

    	E	F	G
    A	Water	Cooking fat	Fat
    B	Cooking oil	Water	Milk
    C	Water	Milk	Cooking oil
    D	Milk	Cooking oil	Water

27. The following are effects of HIV and AIDS:
    1. Low esteem
    2. Loss of earning
    3. Poor health services
    4. School drop outs
    5. Sickness
       Which pair of the above effects affects the nation?
       1. v, ii
       2. i, iii
       3. iii, iv
       4. ii, iii
28. Which one of the following media is the most effective method of educating the masses about HIV and AIDS?
    A. Newspaper
    B. Television.
    C. Radio
    D. Video
29. The pie chart below shows properties of gases G, H, J and K that represent the components of air.
    
    Which of the following are uses of gases G and J respectively?
    1. Breathing and making electric tubes
    2. Germination and making plant food
    3. Putting out fire and making plant protein
    4. Preserving soft drinks and burning
30. Which of the following components of the environment comprise of the major ones only?
    1. Soil, plants, buildings
    2. Animals, water, air
    3. Rocks, animals, soil
    4. Water, air, heat
31. The soil that makes the longest ribbon
    1. has fine texture
    2. has large air spaces
    3. dries fastest
    4. has the best drainage system
32. Which crop below is correctly classified in the chart?
    
    
    1. Rice
    2. Cocoa
    3. Barley
    4. Wheat
33. Below are uses of water in the farm. Which one is not?
    1. Irrigation
    2. Mixing chemicals
    3. Fountain
    4. Watering animals
34. The following are activities carried out when compairing drainage in different soils:
    1. Put equal amounts of the three types of soil in funnels
    2. Pour equal amounts of water into the soils at the same time
    3. Place the funnels in the mouths of the three bottles
    4. Cut off the upper parts of the three bottles to make funnels
    5. Put equal amount of cotton wool in each funnel
       Which one of the following is the correct order?
       1. iv, i, v, iii, ii
       2. iii, i, iv, i, v
       3. i, iv, iii, v, ii
       4. iv, iii, v, i, ii
35. Which one of the following consists of a balanced diet for farm animals?
    1. Fish meal, cotton seeds, sunflower seeds, legumes
    2. Banana stem, green fodder, fruits,succulents
    3. Fish meal, mollasses, cotton seed,fruits
    4. Honey, mollasses, maize germ, rice husks
36. Standard six pupils made the set-up below.
    
    Which one of the following germination conditions were they investigating?
    1. Water
    2. Air 
    3. Warmth
    4. Temperature 
37. Which one of the following is a useful way of using moving air?
    1. Wind milling
    2. Blowing soil away
    3. Tree falling
    4. Blowing roof tops away
38. Which one of the following is mainly a measure when using simple tools?
    1. Cleaning after use
    2. Sharpening cutting tools
    3. Repairing tools
    4. Proper storage
39. The following are sources of heat except
    1. sun
    2. translucent roofs
    3. electricity
    4. gas
40. Which one of the following groups of animals is correctly matched?
    

    	Wild	Useful	Harmful
    A	Ostrich	Dog	Tick
    B	Hare	Cattle	Tick
    C	Dog	Hare	Flea
    D	Fish	Goat	Termite

41. The diagram below represents a marble placed on a board. When pulled suddenly, the marble will fall at
    
    
    
    1. Q
    2. O
    3. R
    4. P
42. Which one of the following statements is correct about nimbus clouds?
    1. White in colour
    2. Bundles of cotton like appearance
    3. Occur low in the sky
    4. Have a flat base
43. Birds which feed on grains have
    1. strong, short and straight beaks
    2. strong, short and curved beaks
    3. strong, short and broad baks
    4. long, sharp and pointed beaks
44. A card with the wood TEACHER written on it was placed in front of a mirror. Which one of the following correctly represents how the word appeared on the mirror?
    1. ЯЯНОАНІ
    2. TEACHER
    3. ТЯАЗНАЯ
    4. ЯННОАЯТ
45. Which one of the following physical signs of adolescence are correctly matched?
    

    	Boys	Girls
    A	Pimples appearance	Hair growth under armpits
    B	Mensturation flow	Beards grow
    C	Weight increase	Wet dreams
    D	Deep voice	Broading of shoulders

46. Which pair of materials below are magnetic?
    1. Steel and alnico
    2. Silver and iron
    3. Cobalt and zinc
    4. Chronium and aluminium
       
       
47. Which one of the following materials works in the same way as frosted glass?
    1. Air
    2. Mirror
    3. Clear water
    4. Oiled paper
48. Which one of the following statements is correct about the blood component shown below?
    
    
    1. It helps in blood clotting
    2. It fights disease causing germs in the body
    3. It carries haemoglobin
    4.  It transports heat all over the body
49. Which one of the following is not an effect of force?
    1. Moving objects
    2. Stopping objects
    3. Changing the states of matter
    4. Destroying objects
50. Which one of the following is not a change of state?
    1. Freezing of water to ice
    2. Melting of ice to water
    3. Boiling water to steam
    4. Crushing of a stone to form powder

MARKING SCHEME

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