Ghana BECE 2006 INTEGRATED SCIENCE PAST QUESTIONS AND ANSWERS

1) The property of a rock that makes it different from water is that it has

2) A plane mirror can be described as opaque because it

3) Wood is used to make the handles of cooking utensils because it is a

4) Ventilation holes are made at the upper part of a door to allow air to rise by

5) When the north poles of two magnets are brought together they

6) A fuse is used in an electrical circuit to

7) The angle between an incident ray and a reflecting surface is 20°. Determine the angle of reflection

8) A screw is a machine which works in the same way as

9) Power is defined as the rate at which

10) An example of a lever in which the effort is applied at the middle is a

11) A simple way of maintaining the efficiency of a machine is by

12) The part of a seed which grows to become the shoot of a plant is the

13) One disease that affects the nervous system of humans is

14) Which of the following life processes leads to the release of energy?

15) Mineral salts in dead organisms are released into the soil by a process called

16) Spectacles fitted with concave lenses are worn by people suffering from

17) Which of these organs in humans releases carbon dioxide as a waste product?

18) Farmers do not plant the stems of maize because the stems

19) Which of the following ways of treating water makes the water soft?

20) Water that needs a small amount of soap to form lather is described as

21) Common salt (sodium chloride) is obtained from sea water by

22) The chemical formula of a compound describes the

23) Which of the following solvents can be used to remove grease from the hand?

24) How many different elements are present in the compound H₂S0₄?

25) Producers in an ecosystem are plants that

26) The disease caused by the Plasmodium parasite is

27) Vaccination is carried out to

28) which of the following farming practices is likely to make the soil poor in nutrients?

29) The type of cloud found closest to the earth’s surface is

30) The amount of water vapour in the atmosphere is called

31) The planet which is farthest away from the sun is

32) Which of the following gases is involved in the process of rusting?

33) A non-reactive metal can be identified from other metals because its surface is

34) The property of a metal that makes it possible for it to be drawn into a wire is called

35) The main reason why food is processed is to make it

36) The process by which kerosene rises up in the wick of a lantern is known as

37) Which of the following statements about friction is not true?

38) Arteries are blood vessels which carry

39) Which of the following structures is not involved in blood circulation?

40) A substance of mass 10 kg has a density of 2.0 kgm⁻³. Calculate its volume.