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

QUESTIONS

1. Which of the following is not a health effect of using drugs?
   1. Truancy
   2. Fits
   3. Withdrawal
   4. Addiction.
2. The following are characteristics of a certain animal.
   1. Has constant body temperature.
   2. Lays eggs.
   3. Has hairy body.
      Which of the following statements is also true about the animal? It has
      1. scales on the body
      2. mammary glads
      3. soft moist skin
      4. short straight beak.
3. Which one of the following pairs of diseases are correctly matched with the time of immunisation?
   

   	Ten weeks	Nine months
   A	Yellow fever	Tuberculosis
   B	Diptheria	Pertussis
   C	Measles	Whooping Cough
   D	Whooping cough	Hepatitis B

4. Which of the following statements is not true about the molar teeth? They
   1. are the last to grow
   2. have cusps and ridges
   3. have two roots
   4. are used for grinding.
5. The main function of hair and mucus found in the breathing system is to
   1. clean the air
   2. keep the trachea open
   3. help in exchange of gases
   4. protect the nose.
6. In which part of the digestive system does digestion of proteins take place?
   1. Mouth
   2. Oesophagus
   3. Stomach
   4. Large intestine.
7. The set up below was done to demonstrate a certain aspect of heat.
   
   The aspect of heat energy that was being demonstrated is
   1. expansion and convection
   2. convection and radiation
   3. convection and condensation
   4. conduction and radiation.
8. Which one of the following statements is not true of all arteries? They
   1. carry blood away from the heart
   2.  have thick walls
   3. carry blood under high pressure 
   4. carry blood rich in oxygen.
9. Which of the following is a use of water in the industry?
   1. Mixing chemicals.
   2. Game fishing.
   3. Cooling machines.
   4. Washing farm equipments.
10. Class six pupils did the experiment as illustrated below.
    
    From the observation, the pupils concluded that light
    1. can be refracted
    2. can be reflected
    3. travels in a straight line
    4. can be dispersed.
11. When investigating the rate of capillarity in different types of soil, which one of the following does not need to be the same?
    1. Amount of cotton wool.
    2. Amount of water.
    3. Size of the tubes.
    4. Types of soil.
12. Which of the following is both a modem and a traditional method of preserving food?
    1. Use of low temperatures.
    2. Use of honey.
    3. Sundrying.
    4. Salting.
13. Which of the following is an effective method of controlling both internal and external parasites?
    1. Dipping
    2. Spraying
    3. Drenching
    4. Rotational grazing.
14. The type of soil erosion in which top soil is uniformly carried away is known as
    1. sheet erosion
    2. gulley erosion
    3. rill erosion
    4. splash erosion.
15. Which of the following crop pests damages crops by making holes on the stem of maize and sugarcane?
    1. Cutworms
    2. Stalkborers
    3. armyworms
    4. aphids.
16. A deficiency in iron in the diet will be seen on a child through all the following signs and symptoms except
    1. bow legs
    2. pale skin
    3. difficulty in breathing
    4. getting tired easily.
17. Which of the following types of animal feeds is given to animals to increase production?
    1. Hay
    2. Concentrates
    3. Silage
    4. Fodder.
18. Which of the following planets is in the fourth and seventh positions in the solar system?
    1. Mars and Saturn
    2. Earth and Neptune
    3. Venus and Uranus
    4. Mars and Uranus.
19. A rain gauge has a part raised 30cm above the ground mainly to
    1. prevent evaporation of collected water
    2. withstand harsh weather conditions
    3. prevent splashing of raindrops in the jar
    4. make the rain gauge collect alot of Water.
20. The figure below shows parts of a flower.
    
    Which of the following statements is true about the part of the flower labelled D?
    1. It produces ovary.
    2. It attracts insect.
    3. It protects the flower during bud stage.
    4. It produces the male sex cells.
21. The flow chart below represents a simple classification of plants.
    
    Which of the above plants is wrongly classified?
    1. Toad stool
    2. Fern
    3. Mangoes
    4. Algae.
22. Which of the following is not a common change in both boys and girls during adolescent?
    1. Increase in height and weight.
    2. Pimples may appear on the face.
    3. Shoulder broadening.
    4. Production of sex cells.
23. Three of the following pairs consists of materials that are magnetic. Which one is not?
    1. Scissors and safety pin.
    2. Steel wool and razor blade. 
    3. Iron nail and spoon.
    4. Marble and copper wire.
24. In which stage of HIV and AIDS infection does the person test positive and looks very healthy?
    1. Window stage.
    2. Incubation stage.
    3. Symptomatic stage.
    4. Full blown stage.
25. Which of the following pairs of materials will not sink even when their shape is changed?
    1. Wood and aluminium
    2. Glass and wax
    3. Wax and wood
    4. Iron and steel.
26. The set up below was used to investigate good and poor conductors of electricity.
    
    Which of the following materials when placed at position X will make the bulb light?
    1. Piece of glass
    2. Graphite
    3. Cellotape
    4. Plastic ruler.
27. Which of the following statements about a bean seed is not correct?
    1. The plumule becomes the root.
    2. The radicle comes out first before the plumule.
    3. Hilum is the scar where the seed was attached to the fruit.
    4. Micropyle is a small hole that allows water and air into the seed.
28. Which of the following excretory products is not correctly matched with the organ that produces it?
    

    	Product	Organ
    A	Excess salt	Lungs
    B	Urea	Kidney
    C	Carbondioxide	Lungs
    D	Excess water	Skin

29. Which of the following mixtures can be separated by winnowing?
    1. Maize and beans.
    2. Flour and husks.
    3. Wheat and millet.
    4. Maize and husks.
30. Which of the following components of air is not correctly matched with its use?
    

    	Component of air	Use of air
    A	Oxygen	Germination
    B	Nitrogen	Making proteins in leguminous plants
    C	Rare gases	Making food for green plants.
    D	Carbon dioxide	Preserving soft drinks.

31. The diagram below was used to demonstrate a certain process.
    
    The process being investigated was
    1. evaporation
    2. condensation
    3. freezing
    4. melting
32. Which of the following components of environment do living things depend on directly?
    1. Soil and plants.
    2. Mineral salts and water.
    3. Water and air.
    4. Soil and air.
33. Green plants depend on other green plants for all the following except
    1. habitat
    2. food
    3. shade
    4. support.
34. Which of the following pairs consists of substances that are in the same state of matter only?
    1. Ice and water.
    2. Wax and glue.
    3. Spirit and water vapour.
    4. Oxygen and water vapour.
35. The diagram below shows an experiment that was used to demonstrate a certain property of matter.
    
    The property demostrated was
    1. matter expand on heating 
    2. air occupies space
    3. air has mass
    4. water exerts pressure.
36. Which of the following is a special sound?
    1. Bird singing.
    2. Noise from a class.
    3. A person screaming.
    4. Brakes screeching.
37. Which of the following describes the clouds shown below? They
    
    
    1. indicate fine weather
    2. keep changing the shape 
    3. appear low in the sky 
    4. indicate heavy rainfall.
38. Which of the following fertilisers contain more than one macro-nutrient?
    1. Sodiun Nitrate.
    2. Urea.
    3. Diammonium phosphate.
    4. Calcium ammonium nitrate.
39. How will the word CHALK appear when placed infront of a mirror?
    
40. A metallic spoon is fitted with a wooden handle? The wood
    1. makes a spoon a better conductor of heat
    2. makes the spoon last longer
    3. makes the spoon appear beautiful
    4. serves as an insulator.
41. All the following animals feeds provides animals with proteins.
    Which one does not?
    1. Glycine
    2. Desmodium
    3. Guatamala
    4. Clovers
42. Which of the following groups of plants have the same root system as shown below?
    
    
    1. Coconut, maize, sorghum.
    2. Beans, mango, oats.
    3. Onions, maize, mango.
    4. Grass, beans, maize.
43. Which of the following liquids will form one uniform layer when put together?
    1. Petrol, spirit, water.
    2. Spirit, kerosene, cooking oil.
    3. Water, spirit, milk.
    4. Cooking oil, milk, water.
44. What happens to a bird when it basks under the sun for a very long time?
    The body temperature
    1. rises
    2. flactuates
    3. remains the same
    4. rises and then falls.
45. The figure below shows a certain lever in use.
    
    Which of the following levers is represented above?
    1. Wheelbarrow
    2. Spade
    3. Claw hammer
    4. Crow bar
46. Which of the following is not a function of the placenta?
    1. Protect the foetus from shock and injury.
    2. Prevent harmful materials from reaching the foetus.
    3. Allow the passage of dissolved food materials to the foetus.
    4. Allow the exchange of gases between the foetus and the mother.
47. In which of the following instances is friction required?
    1. Wearing out of movable parts.
    2. Swimming.
    3. Pushing heavy object on the floor.
    4. Writing on the chalkboard.
48. Tanks are fitted with taps at the bottom mainly
    1. to make them firm
    2. to use all the water in the tank
    3. because pressure is greatest at the bottom
    4. for easier opening.
49. Which of the following is not a safety precaution against electricity?
    1. Do not insert objects into a socket.
    2. Do not repair electrical appliances while still plugged in.
    3. Wear shoes with rubber soles.
    4. Do not over-load a socket.
50. Three of the following are effects of noise pollution. Which one is not?
    1. Deafness
    2. Irritability
    3. Ringing ears
    4. Mental disorder.

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