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THE WEST AFRICAN EXAMINATIONS COUNCIL GHANA

Basic Education Certificate Examination

Integrated Science 2004

OBJECTIVE TEST

Objective Test

Question 1

Which of the following processes of conversion of the states of matter is correct?

Question 2

The types of energy produced when the hands are vigorously rubbed against each other are

Question 3

When a thermometer is put in hot water, the mercury level rises because the mercury increases in

Question 4

The modes of heat transfer involved in the process of heating water in a bucket from the bottom until it boils are

Question 5

Question 5 diagram
Which of the following items converts chemical energy to electrical energy? Use the diagram below to answer question 5 & 6

Question 6

Which of the following statements is correct about the circuit diagrams above? The cells in diagram

Question 7

The total emf of the cells in diagram Y is

Question 8

It is easier to move a heavy load with a crowbar when the

Question 9

Question 9 diagram
The type of lever shown above is a

Question 10

A balanced diet is one which is made up of

Question 11

Benedict’s solution was added to a mixture in a test tube and it turned brick red when heated. The mixture is likely to contain

Question 12

The main food substance present in the albumen of an egg is

Question 13

One characteristic which is not common to all living things is the ability to

Question 14

The ovules in a flower develop to form the

Question 15

Onions are planted by means of

Question 16

The testis in mammals produces

Question 17

Which of the following structures takes part in human digestion?

Question 18

Which of the following diseases is contracted through sex?

Question 19

Chlorine gas is an example of

Question 20

The bad smell that comes out of a urinal is due to the presence of

Question 21

The systematic name of the compound FeS is

Question 22

Which of the following elements is a liquid at room temperature?

Question 23

The type of cloud that gives rain is

Question 24

Water drains faster through sand than clay because

Question 25

Which of the following organisms is not an animal parasite?

Question 26

The housefly is an agent for the spread of

Question 27

The best method for checking erosion on a slope is

Question 28

It is not advisable to sleep in a closed dark room with green plants because, the plants

Question 29

The process whereby soil is formed by the breakdown of rocks is called

Question 30

Kerosene is able to reach the other end of a wick by

Question 31

The force, which opposes the motion of one body on another body is called

Question 32

The work done when a force moves a body through a distance of 12 m is 720 J. The force applied is

Question 33

Food substances are transported from the leaves to various parts of a plant through the

Question 34

Which of the following substances are carried by the blood? I. Nutrients II. Urine III. Oxygen IV. Carbon dioxide

Question 35

A uniform mixture of two or more metals is called

Question 36

Gold is usually used to make jewellery because it is

Question 37

Which of the following substances is a non-metal?

Question 38

Alum is added to water during treatment to

Question 39

Which of the following types of water would be most contaminated by waste substances?

Question 40

The method of preserving food by drying is similar to salting because in both cases germs are

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. Study the simple circuit diagram shown below and answer the questions that follow. Identify the components labelled I, II, III, IV, V and VI Which component is used to close the circuit? State the observation that will be made when the circuit is closed. State the energy transformations that take place when the circuit is closed. Give the name of the circuit connection between components IV and VI.
  2. The diagram below is an illustration of an experimental set-up used for separating a mixture of water and alcohol. Study the diagram carefully and answer the questions that follow. State the method of separation shown in the set-up. Identify liquid Y, with reasons. Give the functions of the thermometer and the water jacket X. What physical processes are involved in the method of separating the mixture? State the physical property which makes it possible to separate the water and alcohol.
  3. A student performed tests on food substances A, B and C and made the following observations Food Substance Test Observation A Few drops of iodine solution was added to A The iodine solution turns blue-black B A drop of B was applied to a white sheet of paper A translucent patch was seen on the paper C Benedict's solution was added to C and the mixture boiled Benedict's solution turns from blue to brick-red Identify food substances A, B and C. Give the products of digestion of A, B and C. In which parts of the alimentary canal does the digestion of each of food substances A, B and C start? In which part of the alimentary canal is food substance C absorbed after digestion?

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) List four parts of a plant that are used for asexual reproduction (ii) Give two reasons why sexual reproduction is more advantageous than asexual reproduction. (b) (i) Explain why atoms are electrically neutral (ii) Write the systematic names of the following substances: (α) CuO, (β) SO2 [5 marks] (c) (i) What is dispersion of light? (ii) Draw and label a diagram of dispersion of light through a triangular glass prism. [4 marks]

Question 2

(a) (i) What is soil erosion? (ii) Give two types of soil erosion. (b) Write the name and chemical formula of the compounds formed when the following elements combine: ( i) zinc and oxygen (ii) calcium and chlorine (c) (i) Distinguish between heat and temperature. (ii) Draw and label the mercury-in-glass thermometer. (iii) What mode of heat transfer is involved in the use of a thermometer?

Question 3

(a)(i)What is a hormone? (ii)Copy and complete the following table.

Question 4

5. (a) (i) Distinguish between a rhizome and a stem tuber (ii) Give one example each of a rhizome and a stem tuber [5 marks] (b) State the method which could be used to separate each of the following mixtures and explain your answer in each case: (i) salt and water, (ii) sawdust andiron filings, (iii) powdered charcoal and water [6 marks] (c) (i) Define density of a substance (ii) Explain how a body which sinks in water could be made to float. [4 marks]