Wednesday, 29 March 2023 13:58

Science Questions and Answers - Class 8 Mid Term Exams Term 1 2023 Set 11

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QUESTIONS

  1. The following are functions of reproductive organs in the female human body:
    1. Protects the embryo from shock.
    2. Passage of dissolved food materials to the embryo.
    3. Exchange of gases between embryo and mother.
    4. Encloses the embryo during development.
    5. Prevents harmful materials from reaching the embryo.
      Which one of the following consists of functions of the placenta only?
      1. (ii), (i), (iv)
      2. (v), (iv), (ii)
      3. (iii), (ii), (iv)
      4. (ii), (iii), (v)
  2. Which one of the following machines work the same way as a door hinge
    1. Fishing rod.
    2. Crowbar
    3. Wheelbarrow
    4. Pair of scissors
  3. Which of the following statements is not true about immunization schedule?
    1. B.C.G vaccines is only given once.
    2. D.P.T is a vaccine against tuberculosis only.
    3. Polio vaccines is given in four doses.
    4. At 9 months, a child is immunized against yellow fever.
  4. The force that opposes motion is measured in
    1. grammes
    2. kilogrammes
    3. newton
    4. tonnes.
  5. The set up below is used to investigate good and bad conductor of electricity.
    C8SCIT1J23002Q5
    Which material when put in gap X will make the bulb light?
    1. Cellotape
    2. Piece of glass
    3. Thread
    4. Razor blade.
  6. Which of the following type of fertilizers contain more than one major macronutrients?
    1. Mono Ammonium Phosphat
    2. Calcium Ammonium Nitrate
    3. Urea
    4. Double Super Phosphate.
  7. Which of the following parts of the digestive system does absorption take place?
    1. Large intestine and rectum.
    2. Mouth and stomach.
    3. Rectum and small intestine.
    4. Small intestine and large intestine.
  8. Some plants develop special structure that twine on other plants. This shows that plants depend on other plants for
    1. habitat
    2. support
    3. shelter
    4. food.
  9. Which one of the following activities is water being used sparingly?
    1. Treating sewage water.
    2. Harvesting rain water.
    3. Using water for washing vegetables to water crops.
    4. Using bottles to water young seedlings.
  10. The main reason to include water in our daily diet is to
    1. prevent constipation.
    2. increase blood formation
    3. prevent dehydration
    4. help in digestion of food
  11. Which of the following pairs of animals consists of omnivores?
    1. Pigs and human beings. 
    2. Chimpanzees and hyenas
    3. Vultures and gorillas
    4. Lions and leopards.
  12. The following animal parasites can be controlled through rotational grazing except
    1. hookworms
    2. mites
    3. ticks
    4. tsetseflics.
  13. In which one of the following are the uses of components that make up 0.97% and 0.03% of air is correctly placed?
       0.97%   0.03% 
     A.   Germination   Making proteins 
     B.  Making bulbs   Putting off fires 
     C.  Breathing  Supporting burning 
     D.  Putting off fires.   Making bulbs
  14. The following are effects of drug abuse:
    1. Truancy.
    2. Impaired judgement.
    3. Addiction
    4. Drug induced accidents.
    5. Rape
      Which of the above are social effects only?
      1. (i), (iii) (iv)
      2. (ii), (iii), (iv) 
      3. (i), (iv), (v)
      4. (i), (iii), (v)
  15. The chart below shows a simple classification of plants.
    C8SCIT1J23002Q15
    Which of the following pairs represent X and Y respectively?
    1. Cactus and fern.
    2. Sisal and kales.
    3. Cypress and onion.
    4. Pines and cypress.
  16. In human beings, the fusion of sex cells take place in the
    1. uterine walls
    2. ovary
    3. fallopian tube
    4. testis
  17. The following are methods of separating mixtures.
    1. Picking
    2. Filtering
    3. Use of a magnet. 
    4. Decanting
    5. Sieving
      Which of the above methods mainly depends on the size of the mixtures? 
      1. (ii) and (v)
      2. (v) and (i) 
      3. (ii) and (iv)
      4. (iii) and (i)
  18. Which of the following plants produces threads for weaving baskets?
    1. Barley
    2. Simsim
    3. Sunflower
    4. Flux
  19. Using a drug for any purpose other that the intended one is referred to as
    1. drug abuse.
    2. expiry date.
    3. overdose.
    4. drug misuse.
  20. Which one of the following is the main effect of HIV/AIDS to the nation?
    1. Increased medical expenses.
    2. Poor health.
    3. Stigmatisation.
    4. Lack of parental care.
  21. Which of the following is a characteristic of the weed that grows along the ground?
    1. Has thorn on stem.
    2. Has fibrous roots.
    3. Produce unpleasant smell.
    4. Produce yellow flowers.
  22. Which one of the following changes that occur during adolescence is correctly placed?
       Boys only   Girls only  
     A.   Beards grow.   Pimples may appear. 
     B.   Growth of pubic hair.   Shoulders broaden. 
     C.  Experience wet dreams.   Hips broaden
     D.  Produce sex cells.  Increase in height and weight
  23. Which of the following diseases are people working in flooded areas likely to experience?
    1. Bilharzia and malaria
    2. Malaria and cholera
    3. Tuberculosis and measles
    4. Cholera and typhoid
  24. Animals depend on plants for
    1. pollination
    2. carbon dioxide
    3. oxygen
    4. decomposition
  25. Which of the following statements about HIV/AIDS is true?
    1. People living with HIV/AIDS are always thin.
    2. HIV/AIDS only affect immoral people.
    3. HIV is not the same as AIDS.
    4. HIV/AIDS is a curse.
  26. The component of environment that occupies the largest part of earth is
    1. air
    2. plants
    3. soil
    4. water
  27. The set up below is used to investigate a certain property of soil.
    C8SCIT1J23002Q27
    The property being investigated above is to show how
    1. soil retains water.
    2. soil passes water.
    3. water rises in the soil.
    4. soil feels when touched.
  28. Which type of human teeth below is correctly matched to its function?
       Teeth    Function 
     A.   Incisor   Even top and two roots. 
     B.  Canine   One root and pointed.
     C.  Premolar   Chisel shaped and three roots. 
     D.  Molar  Sharp pointed and two roots.
  29. The chart below shows a simple classification of drugs.
    C8SCIT1J23002Q29
    Which of the following drugs can correctly fit in Q and R respectively?
    1. Tobacco and cocaine
    2. Heroin and bhang
    3. Alcohol and tobacco
    4. Bhang and alcohol
  30. The following materials were used  to construct a certain weather instrument.
    1. Strong pole.
    2. Polythene bag.
    3. Strong wire.
    4. Paint
    5. Hammer
      The instrument likely to be improvised is used to measure
      1. direction of wind.
      2. direction and strength of wind.
      3. air temperature.
      4. amount of rainfall.
  31. In which one of the following activities is water used the same way as skiing?
    1. Boat racing
    2. Making a fountain
    3. Watering animals.
    4. Washing farm tools.
  32. The diagram below describes a certain blood vessel.
    C8SCIT1J23002Q32
    The blood vessel is likely to be
    1. a venacava
    2. a pulmonary vein
    3. an aorta
    4. a capillary
  33. Which of the following ways of maintaining simple tools is mainly done in metallic tools only?
    1. Repairing and greasing.
    2. Oiling and sharpening.
    3. Sharpening and proper use.
    4. Proper use and storage.
  34. Which of the following is a useful animal?
    1. Aphids
    2. Bees
    3. Rats
    4. Dog
  35. Study the diagram below and answer the question.
    C8SCIT1J23002Q35
    In which two processes is heat energy required?
    1. R and U
    2. T and U
    3. R and S
    4. T and S
  36. Which of the following is the best measure to be taken in a place with an outbreak of violent diarrhoea and vomiting?
    1. Proper sanitation.
    2. Administering vaccination.
    3. Regular deworming.
    4. Draining stagnant water.
  37. The following are uses of opaque materials except
    1. formation of images.
    2. making clothes.
    3. making bathroom and toilet windows.
    4. making skylights.
  38. Which one of the following is a safety measure against lightning when it is raining?
    1. Boat racing.
    2. Squatting on the ground.
    3. Walking on open fields. 
    4. Leaning on a wall.
  39. Which one of the following adaptations of plants growing in dry arcas does not help in conserving water?
    1. Sunken stomata.
    2. Thick cuticles.
    3. Silvery shiny hair.
    4. Deep and wide spread roots.
  40. The food chain below was observed in a certain habitat.
    Plants → Moles → T→ Eagle
    Which one of the following animals is likely to be represented by letter
    1. Lizard
    2. Hare
    3. Mongoose
    4. Antelope
  41. Which of the following is the second stop when making a beam balance?
    1. Fixing the stand on the base.
    2. Suspending the tins.
    3. Finding the balancing point of the arm.
    4. Making base, stand and arm.
  42. When two pupils are balancing on a see-saw, inorder to balance the lighter pupil should
    1. sit near the pivot.
    2. move the pivot away from the heavier pupil.
    3. stand at the end.
    4. sit away from the pivot.
  43. The natural home of a living thing is referred to as its
    1. land
    2. habitat
    3. shelter
    4. environment
  44. Which material below cannot be used to model the solar system?
    1. Shiny paper
    2. Clay
    3. Plasticine
    4. Leaves
  45. The set up below was used to investigate transfer of heat.
    C8SCIT1J23002Q45
    Pins dropped after sometime due to
    1. conduction only.
    2. radiation only.
    3. convection and radiation.
    4. convection only.
  46. The following are uses of light energy. Which one is not?
    1. Reading comfortably.
    2. Discouraging pests.
    3. Warming ourselves. D
    4. Safety in the house.
  47. What makes a metallic bowl to float on water and a small pin to sink?
    1. Shape
    2. Material
    3. Size
    4. Mass
  48. Which one of the following groups of foodstuffs make a balanced diet?
    1. Chicken, termites, chips
    2. Beans, ugali, meat
    3. Rice, beef, ugali
    4. Pork, potatoes, orange
  49. Which of the following is not a special sound?
    1. A woman screaming.
    2. A dog barking at a stranger.
    3. Ambulance siren.
    4. A bell ringing during breaktime.
  50. Which one of the statements below is true about an ostrich and a newt?
    1. Lay eggs.
    2. Are warm blooded.
    3. Have scales
    4. Have internal fertilization.

MARKING SCHEME

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