Science Questions and Answers - Class 8 Mid Term Exams Term 1 2023 Set 10

QUESTIONS

1. Which one of the following organs is NOT involved in breathing?
   
   1. Diaphragm.
   2. Windpipe
   3. Oesophagus
   4. Bronchioles
2. Which of the following blood vessels carries blood from the lungs to the heart?
   
   1. Aorta
   2. Pulmonary vein
   3. Venacava
   4. Pulmonary artery
3. The figure below represents parts of the female reproductive systems,
   
   Implantation takes place in the part labelled
   
   1. W
   2. X
   3. Y
   4. Z
4. The best method of controlling ticks and tapeworms in farm animals would be
   
   1. deworming
   2. dipping
   3. spraying
   4. rotational grazing
5. Which of the following statements is false about HIV/AIDS?
   
   1. People with HIV have AIDS
   2. White blood cells are destroyed by AIDS Virus
   3. Incubation stage last for about 12 years
   4. HIV test helps to know how many people are suffering from the disease
6. In the diagram below which plant is wrongly classified?
   
   
   1. mould
   2. puffball
   3. fern
   4. toadstool
7. Which of the following is not a health effect of drug abuse?
   
   1. Lack of concentration
   2. Truancy
   3. Addiction
   4. Loss of appetite
8. Which of the following pairs of diseases is an infant immunised against at nine month?
   
   1. Measles and Yellow fever
   2. Polio and Tuberculosis
   3. DPT and Polio
   4. Measles and D.P.T
9. Which one of the following methods of grazing is the farmer likely to get most manure?
   
   1. Herding
   2. Paddocking
   3. Tethering
   4. Stall feeding.
10. Which of the physical changes takes places in both girls and boys during adolescence?
    1. Growth of pubic hair
    2. Production of semen
    3. Menstruation
    4. Enlargement of breasts
11. In which of the following are both non-magnetic and magnetic
    

    	Non-magnetic	Magnetic
    A.	Zinc	Brass
    B.	Tin	gold
    C.	Steel	Copper
    D.	Aluminium	Nickel

12. Which of the following crops below stores food in the same way as Spinach?
    
    1. Onions
    2. Carrots
    3. Irish potatoes
    4. Groundnuts
13. The flower that has a sticky stigma is also likely to
    
    1. be scented
    2. have loosely hanging anthers
    3. be dull in colour
    4. produce light pollen grains
14. A child was taken to hospital and the doctor saw sores developing at the corner of the mouth with swollen face. The doctor advice
    the mother to give the child
    1. panadol
    2. milk and beans
    3. vegetables and fruits
    4. alot of porridge
15. Grade 5 pupils set up the experiment below to investigate a certain process in plants.
    
    The process investigated was
    1. making plant food
    2. transpiration
    3. absorption in roots
    4. germination
16. Lilian heated some soil shown below what was she investigating?
    
    
    1. Water in the soil
    2. Air in the soil
    3. Living organisms in the soil
    4. Organic matter in the soil
17. The following is a characteristic of a cloud that is dark grey in colour except
    
    1. Covers the whole sky
    2. Appears low in the sky
    3. Has a flat base
    4. Is rain bearing
18. The weather instrument that measures two aspects of weather is known as
    
    1. windsock
    2. raingauge
    3. windvane
    4. thermometer
19. The planent with the longest orbit is called
    1. Mercury
    2. Uranus
    3. Jupiter
    4. Saturn
20. Use of the excess farm chemicals pollute the soil by
    
    1. killing all the weeds
    2. killing useful soil organisms
    3. improving soil composition
    4. reducing plant nutrients
21. The common waste excreted by all excretory organs is
    
    1. excess salts
    2. urea
    3. sweat
    4. excess water
22. Which of the following measures can control both mites and liverflukes?
    
    1. Dipping
    2. Deworming
    3. Spraying
    4. Rotational grazing
23. A pair of disease that can be controlled by draining stagnant water is?
    
    1. Malaria and Cholera
    2. Cholera and Typhoid
    3. Bilharzia and Malaria
    4. Cholera and Typhoid
24. The main reason as to why commercial feed are fed to animals is to
    
    1. boost their immunity
    2. supplement other feeds
    3. increase production
    4. protect them from disease
25. Grade 5 learners tied the balloon at the mouth of the bottle and heated the bottom of the bottle as shown below
    
    After a few minutes the balloon got inflated. because
    
    1. air expanded
    2. air contracted
    3. balloon expanded
    4. the bottle expanded
26. The MAIN function of the white blood cells is to
    
    1. increase the amount of blood in the body
    2. carry carbon dioxide to the lungs
    3. fight diseases causing germs
    4. carry oxygen to all body parts
27. Animals depend on plants for all the following factors except
    
    1. medicine
    2. food
    3. habitat
    4. pollination
28. Water can be conserved by using it sparingly in the following ways EXCEPT
    
    1. closing taps when not in use
    2. drip irrigation
    3. repairing leaking pipes
    4. re-using dirty water
29. In human digestion system, where does absorption of water and mineral salts takes place?
    
    1. Large intestine
    2. Small intestine
    3. Rectum
    4. Duodenum
30. The following should be avoided during heavy down falls due to lightning except
    
    1. sitting in the middle of the house
    2. leaning against a wall
    3. walking in an open fields
    4. carrying sharp open fields
31. All the following diseases are sexually transmitted EXCEPT
    
    1. Gonorrhoea
    2. Syphilis
    3. HIV/AIDS
    4. Bilharzia
32. Which is the best way of controlling the spread of STIs among the married in the society?
    
    1. Through counselling and testing
    2. Being faithful
    3. Abstaining from sex
    4. Campaign against the infection
33. The figure below shows a set up used to investigate a certain aspect of light?
    
    The aspect being investigated is
    1. reflection of light
    2. uses of light
    3. bending of light
    4. how light travels
34. Which of the following materials have only definite mass?
    
    1. Oxygen and tooth paste
    2. Flour and steam
    3. Oxygen and water vapour
    4. Water and paraffine
35. Which one of the following is not true about organic manures? They
    
    1. improve drainage in the soil
    2. bind soil particles together
    3. release specific nutrients into the soil
    4. improve air circulation
36. Which among the following is a common characteristic between a frog and a bird? They
    
    1. both lay fertilized eggs
    2. all have scales
    3. all have a constant body temperature
    4. breathe by means of lungs
37. Mulching helps to control soil erosion by
    
    1. controlling weeds
    2. providing soil with nutrients
    3. protecting young seedlings
    4. providing a good ground cover
38. Which one of the following food preservation methods is both modern and traditional? Use of
    
    1. honey
    2. low temperature
    3. smoking
    4. canning
39. The type of erosion that is characterised by the V-shaped channels is known as
    
    1. Gulley erosion
    2. Rill erosion
    3. Sheet erosion
    4. Splash erosion
40. The diagram below represents a simple electric circuit.
    
    Which one of the following energy transformation take place when switch is on
    1. Chemical → Electrical → Heat → Light
    2. Electrical → Light → Chemical →Heat
    3. Chemical → Electrical → Light→ Heat
    4. Heat → Light → Electrical → Chemical
41. Alice wanted to separate a mixture of salt sand, iron fillings. Which one of the steps will come third?
    
    1. Use of magnet
    2. Filtering
    3. Dissolving
    4. Evaporation
42. Which one of the following processes occurs as a result of increase in temperature?
    1. Melting and evaporation
    2. Evaporation and condensation.
    3. Condensation and freezing
    4. Freezing and melting
43. Class 8 pupils collected the following materials
    
    1. two bottles 
    2. ink
    3. straw
    4. water
    5. manilla paper
       What were the pupils most likely to make
       
       1. Windsock
       2. Air thermometer
       3. Windvane
       4. Liquid thermometer
44. The figure below is a type of lever
    
    Which of the parts labelled is likely to be the point where effort is applied?
    
    1. M
    2. N
    3. O
    4. P
45. The importance of fibre in the diet is
    
    1. prevent dehydration
    2. prevent malnutrition
    3. prevent constipation
    4. add nutrients to the body
46. Which of the following is not a source of electricity
    1. dynamo
    2. car batteries
    3. sun
    4. solar panels
47. The force that pulls things to the centre of the earth can be measured using a
    
    1. spring balance
    2. weighing scale
    3. see saw
    4. newton
48. Which one is not a waterborne disease
    
    1. Typhoid
    2. Malaria
    3. Bilharzia
    4. Cholera
49. Friction is an advantage in the following activities except
    
    1. skating
    2. walking downhill
    3. erasing
    4. swimming
50. All the following are reasons why mothers are advised to breastfeed their children for a period of two years except
    
    1. Breast milk contains all the required nutrients.
    2. Breast milk boots the immunity of the child.
    3. Breast milk is readily available
    4. Breast milk is always free from germs

MARKING SCHEME

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