SECTION B
41. The diagram below shows glass tubes of the same size with water at different levels as indicated. Study them and answer the questions that follow.
a) If each tube is blown separately, which one will produce:
b) What will happen to the sound produced by tube A if water is increased to the level of tube D?
c) What will happen to the sound produced by each of the tubes if water was replaced by same quantity of milk?
42. The diagram below is of a maize grain. Study it and answer questions (a) to (d) which follow.
a) How is the part marked C useful to the grain?
b) What does the part marked B become during germination?
c) What is the importance of the part marked A.
d) Which of the marked part is not important in germination?
43. A mill bug is a common crop pest.
a) Name any two vegetable crops it affects:
b) What can be done to prevent it from attacking the crops you have named in (a) above?
c) What natural method controls mill bug pests in a garden?
44. a) What is a magnet?
b) Give an example of how a doctor in a hospital can use a magnet.
45. When measles attacks a child, there are signs and symptoms.
a) Give an example of:
i) A sign of measles
ii) Symptom of measles
b) In which way can measles be prevented from attacking a baby?
c) Why is it important to give a child suffering from measles plant of fluids to drink?
46. a) Give the type of chicken reared for:
i) meat
ii) eggs
b) Suggest two ways you would care for chicken to improve upon their egg production.
47. a) Name one practice which increases the spread of biliharzia.
b) Which vector is important in the spread of biliharzia?
c) Give any two ways of preventing the spread of biliharzia.
48. a) Draw two dry cells arranged correctly and ready to give light in a bulb.
b) If you get a new torch with new dry cells and a new working bulb in place, but when you switch it on the bulb does not light.
Suggest any two possible problems with torch.
49. a) What is First Aid?
b) Why would it be dangerous for a boy of eleven years to try to remove an adult, who is near drowning, from water?
c) Suggest two things the boy in (b) above should do to save the adult from drowning.
50. The diagram below is of a fish. Study it and answer the questions which follow.
a) Mark with letter P, the part which enables the fish to move forwards.
b) What is the function of part marked C?
c) Complete the table to compare parts marked K and D to those of a goat.
| Part of fish | Name the similar part in a goat |
|
i) K ii) D |
.................................................. .................................................. |
51. a) What is a mixture of two or more metals?
b) Give one example of a common mixture of petals.
c) Apart from parting, give any other method of preventing a metal object from rusting.
52. The diagram below shows the alimentary canal of a bird. Use it to answer the questions that follow:
a) What does the bird use part K for?
b) What is function of part L?
c) What takes place in the part marked P?
d) How is part M useful to the bird?
53. The diagram below is of a domestic item. Study it and answer the questions which follow.
a) What is the part marked A made of?
b) What is the function of the part marked C?
c) Why is part useful in this item?
d) Why is it that many homes do not use this item?
54. a) State any two qualities of an essential drug.
b) Give any two advantages of laboratory manufactured drugs over traditional drugs.
55. a) If the temperature of tea which is 450C reduces by 150C, what will be the temperature of the tea?
b) Change your answer in (a) above to Fahrenheit scale.