Skip to content
BECEzone

THE WEST AFRICAN EXAMINATIONS COUNCIL GHANA

Basic Education Certificate Examination

Integrated Science 2008

OBJECTIVE TEST

Objective Test

Question 1

A metre rule can be used for measuring the

Question 2

Heat travels through vacuum by

Question 3

A mirror is used to direct sunlight onto the wall of a classroom by

Question 4

Which of the following energy changes takes place in ringing bell?

Question 5

A fuse is connected in an electric circuit to

Question 6

Which of these objects is a magnetic substance?

Question 7

Which of the following bodies are natural sources of light?

Question 8

Which of the following statements describes the nature of light?

Question 9

Metals are able to conduct electricity because they possess

Question 10

Beriberi is caused by deficiency of vitamin

Question 11

Which of the following fruits is adapted for dispersal by air?

Question 12

The food substance needed for growth and repair of tissues is

Question 13

The type of teeth used for biting and cutting are the

Question 14

Water is absorbed by roots in plants and transported to the leaves through the

Question 15

The outer ear consists of the

Question 16

Changes in pressure in the middle ear is regulated by the

Question 17

The amount of light that enters the eye is reduced by the size of the

Question 18

In humans, features of parents are passed on to offspring through

Question 19

The taste of water changes when it is boiled because

Question 20

Arrange the following types of water in order of increasing hardness

Question 21

Which of these methods is used to separate insoluble solids from liquids?

Question 22

A uniform mixture of two or more metals is called

Question 23

Which of the following liquids cannot dissolve an oil paint?

Question 24

An atom which contains more electrons than protons becomes a

Question 25

The following substances are mixtures except

Question 26

The fish is protected from injury by the

Question 27

Which of the following substances is an air pollutant?

Question 28

Bathing in lakes and slow moving streams can lead to one getting

Question 29

Some plants shed their leaves during the dry season to prevent

Question 30

Caterpillar is an example of

Question 31

How long does it take the moon to go completely round the earth?

Question 32

An unripe orange is said to be acidic because it

Question 33

The chemical symbol of potassium is

Question 34

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

Question 35

Which of the following methods of preserving food make use of heat energy? I. Drying II. Frying III. Salting IV. Canning

Question 36

Weight is an example of

Question 37

Blood is prevented from flowing back into the veins by the

Question 38

The force that binds molecules of the same substance together is called

Question 39

Soluble digested food substances enter the blood of the human body by a process called

Question 40

Capillary action is applied in the following activities except

THEORY

ESSAY

This paper is in two sections, A and B Answer Question 1 in Section A and any other three questions in Section B. Credit will be given for clarity of expression and orderly presentation of material

Question 1

Theory question 1 diagram
  1. In an experiment, as in the set-up above, two glass containers A and B of different sizes are joined together with a tube and clipped. Water is poured into container A to a height of 30 cm and a red liquid is poured into B to a height of 10 cm. The clip is then removed so that the liquids join together. State two observations that will be made immediately the clip is removed. Explain the observations in (i) What two observations will be made after a long time? Explain. State the observations that will be made about nails 1, 2, 3, and 4. State the observations that will be made about the temperatures recorded by thermometers A, B, C, and D. What mode of heat transfer is demonstrated in the experiment? State one effect of heat that is associated with the experiment. State the aim of the experiment.
  2. The set-up below is used in the preparation of ammonia gas in the laboratory Study it and answer the questions that follow Name the parts labeled a, b and c. What is the meaning of the arrow sign d? What is the function of the calcium oxide? Why has c been tilted downwards? State the method by which the gas is collected. How will you test for the gas? Give the names and the chemical formulae of the compounds that form the content of c.
  3. In an experiment, a leaf that is partly green and partly yellow is plucked from a tree and the leaf is I. boiled for a minute II. dipped in warm alcohol III. washed in cold water IV. dipped in iodine solution One part of the leaf turns blue-black after the dipping in iodine solution while the other part remains unchanged. Explain why each of the processes I, II and III is carried out. Which part of the leaf turns blue-black? Explain. Why does the other part of the leaf not change colour? What conclusion can you draw from the experiment?

PART I [40 marks]

Answer all of Question 1

Questions for this section are in the printed paper.

PART II [45 marks]

Answer anythreequestions from this section

Question 1

(a) (i) State the difference between an opaque object and a translucent object. (ii) Give one example each of an opaque and a translucent material. (b) (i) What is the importance of seed dispersal? (ii) Name two types of fruits and state their mode of dispersal. (c) (i) What is recycling? (ii) Give two advantages of recycling of materials (iii) List three recycled products in Ghana.

Question 2

(a) (i) Explain the term bedwetting? (ii) State two diseases that may result from bedwetting (b) (i) State the difference between hard water and impure water. (ii) Give the stages involved in the treatment of water for a community. (c) A piece of stone has a mass of 36.0 g. When it is put into water in a glass container, the level of water rises from 60.0 cm3 to 90.0 cm3. (i) Calculate the density of the stone. (ii) Explain what will be observed when the stone is put into another liquid of density 1.4 gcm3?

Question 3

(a) (i) What is an echo? (ii) State two uses of echoes (b) (i) State three diseases that affect the respiratory system of human. (ii) Name one method each by which the diseases you have named can be prevented. (c) (i) What is biotechnology? (ii) List three products that are obtained from biotechnology.

Question 4

(a) (i) Define pressure (ii) State three applications of pressure in everyday life. (b) State four functions of the liver in digestion (c) (i) What is a compound? (ii) Give two properties of a compound (iii) Write down the name and the chemical formula of the compound formed between the following elements: (α) hydrogen and chlorine (β) magnesium and oxygen