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THE WEST AFRICAN EXAMINATIONS COUNCIL GHANA

Basic Education Certificate Examination

Integrated Science 2011

OBJECTIVE TEST

Objective Test

Question 1

An example of a noble gas is

Question 2

The structure that stores sperms temporarily in the male reproductive system of humans is

Question 3

Which of the following properties of alcohol as a thermometric liquid is correct?

Question 4

In which of the following vegetation of Ghana does millet and sorghum grow well?

Question 5

Which of the following methods is/are used for preserving fish? I. Canning II. Frying III. Smoking

Question 6

Which of the following practices in the home can prevent disease infection?

Question 7

An example of a semimetal is

Question 8

Which kind of energy transformation takes place in an electric motor?

Question 9

Landrace is a breed of

Question 10

In flowering plants, the stamen is made up of

Question 11

Which of the following statements about a transistor is correct?

Question 12

An atom has 6 protons and 7 neutrons in its nucleus. What is the mass number?

Question 13

A record of daily activities on a farm is termed

Question 14

Which of the following devices work(s) on the principle of transmission pressure in fluids? I. Water pumps II. Syringes III. Bicycle brakes

Question 15

Which of the following crops is not correctly matched with its group?

Question 16

Which of the following substances is a salt?

Question 17

In which part of the digestive system of a fowl does grinding of feed take place?

Question 18

The parts of a bony fish that are used to control the level at which the fish swims are known as

Question 19

Millon's reagent is used to test for

Question 20

In an n-p-n transistor, the n-type collector is connected to the positive terminal of the battery thus making the

Question 21

Which type of vegetation favours both wet and hot environmental conditions?

Question 22

During drought, some plants dry out because of high I. atmospheric temperature II. humidity III. rate of evaporation

Question 23

Soil erosion on sloppy farmlands is best controlled by

Question 24

A viable seed is one that

Question 25

Which of the following pairs of structures form part of the female reproductive system of humans?

Question 26

Which of the following chemical symbols is that of a metal?

Question 27

All the living and non-living things that surround an organism constitute its

Question 28

Which of the following crops should be planted after cassava in crop rotation?

Question 29

Endoparasites in farm animals can be controlled by

Question 30

Which of the following devices requires the use of transistors in its operation?

Question 31

Feel Method is used to determine soil

Question 32

Which of the following modes of heat transfer is the thermos flask designed to minimize? I. Conduction II. Convection III. Radiation

Question 33

An atom of an element is represented as (12^25 X). What is the respective number of neutrons and protons in the atom?

Question 34

The anemometer is an instrument used in determining

Question 35

Which of the following subjects is/are considered as applied science? I. Biology II. Medicine III. Psychology

Question 36

Chinchilla is a breed of

Question 37

Which of the following characters is not acquired through heredity?

Question 38

The food nutrient which ensures good health in farm animals is

Question 39

The use of resistant breeds of farm animals to control pests is a

Question 40

Which of the following arrangements show the correct order of increasing complexity of structures in living organisms?

THEORY

ESSAY

This paper is in two parts: I and II. Answer Question 1 in part I and any other four question in part II

Question 1

Theory question 1 diagram
  1. In an experiment to demonstrate a property of light, three cardboards, A, B, and C with holes in their centres are arranged in a straight line between a lighted bulb and an observer as shown in the illustration below. Study the illustration carefully and use it to answer the question that follow: What would the observer see from the position shown? What would the observer see when cardboard B is slightly displaced from the line? Explain the observation made in (a) (ii) above. What would be observed when the cardboard B is brought back to its original position? What property of light is being demonstrated in this experiment? Mention two natural occurrences that could be explained by the property of light demonstrated. one device that works on the property of light demonstrated.
  2. The diagrams below are illustrations of hazards symbols found in everyday life. Study them carefully and use them to answer the questions that follow: What does each symbol A, B, C and D represent? Name one substance each that is associated with each of the symbols A, B and C. Name one place where the symbols D can be found. State two advantages of hazard symbols.
  3. The diagrams below are illustrations of the different types of teeth in humans. Study the diagram carefully and answer the questions that follow. Identify each type of teeth labelled A, B and C. Describe the shape of each of the teeth labeled A, B and C. State one function of each of the teeth labeled A, B and C. Name the parts of the teeth labeled I and II.
  4. The diagrams below are illustrations of some farm tools. Study them carefully and use them to answer the questions that follow: Identify each of the following labeled A, B, C, D and E. Mention one use of each of the tools labeled A, B, C, D and E.

PART I [40 marks]

Answer all of Question 1

Questions for this section are in the printed paper.

PART II [60 marks]

Answer all of Question 1

Question 1

  1. What are ruminants? Give two examples of ruminants.
  2. What is force? State two effects of forces on the body.
  3. Mention two ways in which the carbon cycle can be maintained. State one environmental effect when the carbon cycle is disrupted.
  4. Mention the three sub-atomic particles. State the relative charge on each of the three sub-atomic particles mentioned in (d) (i) above. Name the particle formed when an atom loses an electron.

Question 2

  1. What is a mixture? Explain why some mixtures are thoroughly stirred before they are used.
  2. What is reflection of light? State two characteristics of the images formed by plane mirrors.
  3. What is a fertilizer? Give one example of an inorganic fertilizer.
  4. What is indiscriminate sex? State two dangers of indiscriminate sex on humans.

Question 3

  1. What is a simple machine? Give two examples of a simple machine.
  2. What is rusting? State two effects of rusting.
  3. What are food nutrients? Classify the following food items as carbohydrate, fats and oil, or protein: Beans, palm fruits, meat, margarine, bread, and maize.
  4. State two effects of malnutrition in farm animals. Mention one disease of farm animals caused by a virus.

Question 4

  1. What is soil erosion? Name two methods of controlling soil erosion.
  2. Explain each of the following terms as used in ecology: Adaptation; Endangered species.
  3. Give one example of hard water. Explain why it is advisable to drink water which is hard.
  4. What is magnetic field? State two methods of making magnets.

Question 5

  1. Define each of the following terms: solvent; solute. Name one common solvent used in the home.
  2. Explain the following terms as used in animal production: ration; dehorning.
  3. What is an element? Write down the symbol of each of the following chemical substances: Potassium; Sulphur.
  4. Explain each of the following terms: Mixed farming; Mixed cropping.