SECTION B
41. a) What is a crop pest?
b) Give any one example of a crop pest.
c) Apart from spraying with chemicals, give any other two ways of controlling crop pests.
42. a) Give any one habit that may lead a person to catch AIDS.
b) Suggest the best way of controlling the spread AIDS.
c) Give any two signs that show that an individual is suffering from AIDS.
43. a) What is the use of a clinical thermometer?
b) Give any one reason why there is a bend in the tube of a clinical thermometer.
c) Which Liquid is mainly used in thermometers?
d) Why is the liquid you have named instead of other liquids?
44. a) Name any one disease that is immunised against at birth.
b) Which site on the body is measles immunisation usually given?
c) Why are pregnant women immunised against tetanus?
d) How does tetanus get into our bodies?
45. a) Give one natural process in plants in which:
i) Oxygen is used.
ii) Carbon dioxide is used.
b) What is useful by-product is produced in (a) (ii) above?
c) Give any other natural process that uses oxygen.
46. Show the difference between the first-class lever and the second class lever by drawing and labelling the two diagrams.
47. a)In which one way is the function of the skin similar to that of lungs?
b) Give an example of a practise which will prevent the skin to function properly.
c) Suggest any two ways in which the proper functioning of the skin can be promoted.
48. a) Give any two reasons for preserving meat.
b) Give one traditional way of preserving meat in Uganda.
c) Give any one modern way of preserving meat.
49. a) You are running home with your friends after school and one of your friends accidentally falls and his thigh bone breaks.
b) What do you call the injury he has got?
c) Give two things you will o to give him First Aid.
d) You and your friends decided to carry him properly?
50. a) What type of electricity is generated at Jinja?
b) What is the difference between solar and thermal electricity?
51. The diagram below shows the alimentary canal of a human being. Use it to answer the questions that follow.
a) Name the part marked W and X.
b) State any one process that takes place in part labelled Y.
c) Give one function of the organ labelled X.
52. The diagram below shows a ray of light striking the mirror. Use it and answer the questions that follow:
a) Name the part marked C.
b) Put an arrow on line D to show the direction of the ray of light.
c) If angle b = 400, what is the size of angle a?
53. a) Which vector spreads dysentery?
b) Give any two ways of controlling dysentery in our homes.
c) Why should a person suffering from dysentery given Oral Rehydration Salts (ORS)
54. Study the table below and answer the questions that follow:
| LIST A | LIST B |
|
Tilapia Frog Crocodile Dove |
Rat Goat Lion Whale |
a) What is the similarity in the way animals in list A reproduce?
b) To which class of animals do those in list B belong?
c) In which way is tilapia in list A similar to a whale in list B?
d) What is common about the animals in list A and in list B?
55. a) Draw a bean seed and show a scar and micropyle.
b) Draw a split bean seed and show a plumule and radicle.