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BECEzone

THE WEST AFRICAN EXAMINATIONS COUNCIL GHANA

Basic Education Certificate Examination

Integrated Science 2000

OBJECTIVE TEST

Objective Test

Question 1

Which of the following organs is used by the fish for movement?

Question 2

A group of stars found in the universe is called

Question 3

The basic unit of matter is the

Question 4

Which of the following process is a physical change?

Question 5

The organ that removes metabolic wastes from the human body is

Question 6

The food chain that occurs in nature is

Question 7

The device that uses an electromagnet in its operation is the

Question 8

Which of the following statements about mammals is true?

Question 9

The parasite that is found on dogs is

Question 10

The substance that sublimes when heated is

Question 11

In plants, when the male gamete fuses with the egg, the first structure that is formed is the

Question 12

Clayey soil holds more water than any other type of soil because it has

Question 13

Disposal of urine and faeces into a river used for domestic purposes may cause the outbreak of

Question 14

The temperature of 20°C on the Kelvin scale is

Question 15

The heavenly body that produces and emits its own light is

Question 16

Desert plants shed their leaves to reduce the rate of

Question 17

Which of the following materials transforms electrical energy into light energy?

Question 18

The name of the smallest blood vessel in humans is

Question 19

Which of the following activities is a reflex action?

Question 20

The method of separation used in the treatment of water at the water works is

Question 21

The gas produced when dilute hydrochloric acid is added to calcium carbonate is

Question 22

Which of the following environmental factors increases sweating in humans?

Question 23

Which of the following crops is propagated vegetatively?

Question 24

The type of energy stored in food is referred to as

Question 25

The end product of protein digestion is

Question 26

The attracting power of magnets is greatest at the

Question 27

The substances which help in the digestion of food materials are called

Question 28

The transfer of heat through a solid medium is by

Question 29

Casual and loose sex life can result in the spread of

Question 30

Which of the following conditions will cause the same quantity of sugar to dissolve faster in a given volume of water?

Question 31

The raw material for photosynthesis is

Question 32

Which of the following heavenly bodies is at the centre of the planetary system?

Question 33

Legumes are generally included in crop rotation because they

Question 34

The insect which transmits the plasmodium parasite is called

Question 35

The property of water that causes mosquito larvae to float on it is

Question 36

Which of the following practices is a bad habit?

Question 37

Addition of more solvent to a solution makes the solution more

Question 38

An atom has 4 protons and 5 neutrons in its nucleus. How many positively charged particles are in the atom?

Question 39

Which of the following statements about all living things is true?

Question 40

Spectacle with converging lenses are used by people suffering from

THEORY

ESSAY

Answer three questions only from this section. Illustrate your answers wherever possible, with large, clear and fully labelled diagrams. Credit will be given for clarity of expression and orderly presentation of material. All questions carry equal marks

Question 1

(a) (i) What is personal hygiene? (ii) List four ways by which personal hygiene could be maintained (b) Define each of the following terms and give two examples in each case: (i) compound (ii) mixture (c) (i) What is a machine? (ii) Give one example each of a (α) first class lever (β) second class lever (γ) third class lever (d) (i) What is a satellite? (ii) State one use of satellite

Question 2

(a) What is an electrostatic force? (b) (i) State the unit of (α) force (β) work (ii) A body of mass 80 kg is lifted vertically through a distance of 5.0 m. Calculate the workdone on the body. [Acceleration due to gravity (g) = 10 m/s2] (c) Describe briefly how a mixture of common salt and powdered sulphur could be separated. (d) State three characteristics each of (i) an insect pollinated flower (ii) a wind pollinated flower

Question 3

(a) (i) What is fertilization? (ii) Describe briefly the processes that lead to fertilization in humans after mating (b) (i) Define the term density (ii) Describe briefly how the density of a piece of stone could be determined (c) (i) What is an element? (ii) Classify each of the following substances as an element, compound or mixture: Water, air, potassium, alcohol, common salt, sugar

Question 4

(a) Define each of the following terms: (i) alloy (ii) diffusion (iii) colloid (b) Give two examples each of: (i) alloy (ii) colloid (c) (i) What is pollution? (ii) List two pollutants each of: (α) air (β) water (γ) land (d) A coconut of weight 50 N hangs 15 m above the ground. (i) Name the type of energy possessed by the coconut. (ii) Calculate the value of this energy

PART I [40 marks]

Answer all of Question 1

Questions for this section are in the printed paper.