1The property of a rock that makes it different from water is that it has
2A plane mirror can be described as opaque because it
3Wood is used to make the handles of cooking utensils because it is
4Ventilation holes are made at the upper part of a door to allow air to rise by
5When the north poles of two magnets are brought together they
6A fuse is used in an electrical circuit to
7The angle between an incident ray and a reflecting surface is 20 o . Determine the angle of reflection.
8A screw is a machine which works in the same way as
9Power is defined as the rate at which
10An example of a lever in which the effort is applied at the middle is a
11A simple way of maintaining the efficiency of a machine is by
12The part of a seed which grows to become the shoot of a plant is the
13One disease that affects the nervous system of humans is
14Which of the following life processes leads to the release of energy?
15Mineral salts in dead organisms are released into the soil by a process called
16Spectacles fitted with concave lenses are worn by people suffering from
17Which of these organs in humans releases carbon dioxide as a waste product?
18Farmers do not plant the stems of maize because the stems
19Which of the following ways of treating water makes the water soft?
20Water that needs a small amount of soap to form lather is described as
21Common salt (sodium chloride) is obtained from sea water by
22The chemical formula of a compound describes the
23Which of the following solvents can be used to remove grease from the hand?
24How many different elements are present in the compound H 2 SO 4 ?
25Producers in an ecosystem are plants that
26The disease caused by the Plasmodium parasite is
27Vaccination is carried out to
28Which of the following farming practices is likely to make the soil poor in nutrients?
29The type of cloud found closest to the earth's surface is
30The amount of water vapour in the atmosphere is called
31The planet which is farthest away from the sun is
32Which of the following gases is involved in the process of rusting?
33A non-reactive metal can be identified from other metals because its surface is
34The property of a metal that makes it possible for it to be drawn into a wire is called
35The main reason why food is processed is to make it
36The process by which kerosene rises up to the wick of a lantern is known as
37Which of the following statements about friction is not true?
38Arteries are blood vessels which carry
39Which of the following structures is not involved in blood circulation?
40A substance of mass 10 kg has a density of 2.0 kgm -3 . Calculate its volume.
