SECTION B
41. Most of our health problems can be solved without the use of drugs.
Suggest any four ways in which this can be done.
The diagram below shows a lantern lamp. Use it to answer question 42.
42. a) How does paraffin move up through the wick?
b) Name two forms of energy that are produced by this lantern lamp.
c) What is the use of the part marked S?
43. a) Give two ways in which you can prevent in your home.
b) Suggest two reasons why HIV/AIDS infection tends to be more common among female adolescents than among the male adolescents.
44. The diagram below shows breaks and feet of birds. Use it to answer the questions that follow.
a) Suggest the type of food the bird labelled A eats.
b) How does the bird used the claws (foot) labelled C for feeding?
c) What type of food is suitable for the bird's beak labelled B?
d) How useful is the foot labelled D to the bird?
45. a) Give two functions of nerves in the human body.
b) In which two ways is food important to the human body?
46. Give any four methods commonly used to preserve meat.
47. The graph below shows the number of eggs laid daily on a poultry farm.
a) On which day was the highest production recorded?
b) What was the average number of eggs produced per day?
c) If an egg costs shs.100, how much money did the farmer get that week?
d) Suggest one problem which could have caused the low production on Monday and Thursday?
48. a) What is the use of a fuse in a circuit?
b) Give three reasons why the bulb of a torch may not light even when the switch is on.
49. Describe an experiment to show that air has weight.
50. The diagram below shows a common instrument. Use it to answer the questions (a) to (d).
a) What is the use of the above instrument?
b) Name the liquid labelled A.
c) Why is the liquid named in (b) above used in that thermometer.
d) What is the importance of the part marked X?
51. a) Name three things requires by leaves for the process of photosynthesis to take place.
b) Give the importance of photosynthesis to the flowering plants.
52. What type of immunity does a child get in each of the following:
i) From mother to child?
ii) After immunisation?
iii) After suffering from a disease like measles?
b) Why should pregnant women be immunised against tetanus?
53. The diagram below shows a charcoal flat iron box.
a) Why is the handle of the iron box made of wood?
b) State two uses of the holes on the iron box.
c) How does heat from the iron box reach the users body?
54. The diagram shows three metallic rings Q ,P,T.
a) Which ring will produce:-
i) Sound with a low pitch?
ii) Sound with a high pitch?
b) Name any two devices that can be used to store sound.
55. Suggest four reasons why physical exercises are important to our bodies.