Ghana BECE 2018 INTEGRATED SCIENCE PAST QUESTIONS AND ANSWERS

1) The space occupied by matter is its

2) Which of the following structures contain cellulose?

4) The farming system that makes effective use of available soil nutrients in a growing season is

5) Which of the following members in a food chain will receive the least energy?

6) What is the chemical symbol for silver?

8) The process by which gas changes to liquid is known as

9) Which of the following substances is acidic?

10) The basic unit of life is the

11) Useful materials in food that provide growth and repair of worn out tissues are called

12) In human reproduction, the sperm fertilizes the female egg to form the

14) A solid X reacted with a liquid Y to form a salt and water only. A portion of liquid Y turned blue litmus paper red. Solid X did not dissolve when a portion of it was placed in water and stirred.

Liquid Y is

15) A solid X reacted with a liquid Y to form a salt and water only. A portion of liquid Y turned blue litmus paper red. Solid X did not dissolve when a portion of it was placed in water and stirred.

If red litmus paper is placed in liquid Y, the colour of the paper will

16) The type of soil which becomes water-logged after rainfall is made up of a large amount of

17) Ringworm is a disease which attacks the

18) The most appropriate practice to adopt when growing vegetables in the dry season is

19) Which of the following organisms improves soil fertility?

20) The introduction of natural enemies to control pests on a field is a

21) A body has a density of 30 g cm⁻³ and volume of 6 cm³. Determine the mass of the body.

22) The force which tends to pull an object in a circular motion towards the centre of the circle is called

23) The swollen shoot disease of cocoa is caused by

24) The instrument used to measure atmospheric pressure is called

25) The systematic name of NO₂ is

26) Which of the following simple machines is a second class lever?

27) A cylindrical metal has radius 7 cm and height 2 cm. Determine the volume of the cylinder. [Take π = 22/7]

Which of the following statements are true of compounds?
I. They are homogenous
II. Their constituents are present in fixed ration by mass
III. Their constituents keep their individual properties

Which of the following factors contribute to early parenthood?
I. Illiteracy
II. Poverty
III. Peer pressure
IV. Lack of parental care

30) Which of the following statements about the negative use of Science and Technology is correct? It

31) Which of the following nutrients is needed by plants in small quantities?

32) Which of the following statements about shadow formation is correct? It shows that light rays can

33) The colour of the neutral wire in an electrical circuit is

34) A metal displaces 5.0cm³ of water when it is totally immersed. If the mass of the metal is 35.0 g, calculate its density.

Which of the following physical properties of water are correct? Water
I. Is a colourless liquid
II. Is a universal solvent
III. Boils at 100 °C at standard atmospheric pressure
IV. Has a density of 5 kg cm⁻³ at 4 °C.

36) The relative proportions of the different particle size in a soil sample refer to soil

37) Which of the following chemical equations is balanced?

38) Heat is transferred along an iron bar by

39) The second stage in the life cycle of a mosquito is the

40) The function of the platelets in the circulatory system of humans is to