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THE WEST AFRICAN EXAMINATIONS COUNCIL GHANA

Basic Education Certificate Examination

Integrated Science 2014

OBJECTIVE TEST

Objective Test

Question 1

Which of the following type of teeth is used by mammals to tear food material?

Question 2

The eclipse formed when the moon comes between the sun and the earth is known as……………

Question 3

The element with the chemical symbol S is ……

Question 4

The term leaching in soils refers to .....

Question 5

Which of the following statements about plant cell is correct? It

Question 6

An example of a derived quantity is

Question 7

Solid non-metals normally break into pieces when hammered because they are

Question 8

Young rabbits are called

Question 9

Producers in an ecosystem are plants that

Question 10

The form of energy produced from the nucleus of an atom is termed

Question 11

Which of the following elements is a semi-metal?

Question 12

A system of farming that leads to continuous destruction of virgin forests is

Question 13

The by-products of respiration are

Question 14

Which of the following statements about a force are correct? It I. is measured in newtons. II. is measured in newton-metre. III. can start a motion. IV. can change the direction of a moving body.

Question 15

Which of the following substances is a solid-gas mixture?

Question 16

Weeds on a by school farm could be controlled by

Question 17

An example of a non-living tissue used in osmosis experiment is

Question 18

Kerosene is poured on the surface of a pond in order to

Question 19

Which of the following processes is used to separate insoluble solids from liquids?

Question 20

The process of removing unproductive poultry birds from a flock is referred to as

Question 21

Which of the following pairs of diseases can be spread easily when food is exposed to houseflies?

Question 22

The pressure in fluids

Question 23

Which of the following processes involve a change in the state of matter from liquid to solid?

Question 24

Which of the following food items contains the highest amount of dietary fiber?

Question 25

An example of a disease vector is

Question 26

Which of the following devices is made of semiconductor?

Question 27

Which of the following statements about the properties of water are correct? It I. is colourless and tasteless II. is neutral to litmus paper III. turns red litmus paper blue IV. is a universal solvent

Question 28

The study of the soil profile of an area helps the farmer to

Question 29

When a green leaf is placed in a test tube containing ethanol and heated over a water bath the leaf

Question 30

Which of the following source(s) of energy is/are renewable? I. Solar II. Crude oil III. Wind

Question 31

Which of the following substances is a compound?

Question 32

A disease-causing organism that is most difficult to control in crop production is

Question 33

Which of the following organisms is/are multicellular? I. Amoeba II. Paramecium III. Onion

Question 34

In electronic circuits, LEDs are used to indicate the absence or presence of

Question 35

Steel is an alloy of iron and

Question 36

Soil aeration could be improved through

Question 37

Which of the following pairs of structures are parts of the respiratory system of humans?

Question 38

Which of the following effects is not a result of illegal connection of electricity? It can

Question 39

Which of the following statements about the scientific method is/are correct? It provides I. logical procedure for arriving at knowledge II. knowledge that can be verified III. knowledge that can never be changed

Question 40

An entrepreneur's decision as to what to produce is a/an

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. The diagram below represents the stages in the life cycle of a mosquito. Study the diagram carefully and answer the questions that follow. Name each of the stages labelled I, II, III and IV. State how stage II obtains oxygen. State two methods of controlling each of the stages labelled III and IV.
  2. The diagrams below are different laboratory set-ups used in the separation of mixtures. Study the diagram carefully and answer the questions that follow. Name each of the parts labelled I, II, III, IV, and VI. Name the separation method represented by each diagram. Which of the set-ups is used to obtain clear water from muddy water? Which of the set-ups is used to obtain salt from salt solution?
  3. The diagrams below show some instruments used in the laboratory. Study the diagram carefully and answer the questions that follow. Identify each of the instruments labelled I, II, III, IV, and V. State one use of each of the instruments labelled I, II, III, and IV. Read and record the volume of the liquid in the instrument labelled V.
  4. The diagram below shows the digestive system of a class of farm animals. Study the diagram carefully and answer the questions that follow. Name each of the parts labelled I, II, III, and IV. State one function each of the parts labelled II and IV. Name two farm animals that possess this type of digestive system. Mention two diseases which affect this class of farm animals.

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. Name the two elements that combine to form water.
  2. Write a balanced chemical equation to show how the water is formed from the named elements.
  3. State two ways of maintaining a balance in an ecosystem.
  4. What is a fertile soil? State two factors that cause loss of soil fertility.
  5. Classify the following items as magnetic or non-magnetic substance: wood, steel blade, rubber, and glass jar.

Question 2

  1. What is germination of seed? State two conditions necessary for the germination of seed.
  2. State four methods used in identifying farm animals.
  3. Explain why it is easier to cut a piece of yam with a sharp knife than with a blunt knife.
  4. State three differences between a metal and a non-metal.

Question 3

  1. What is debeaking? Give two reasons why debeaking in poultry birds is important.
  2. A steel needle carefully placed on the surface of water floats. What type of force made the steel needle to float? Name three substances that could be added to the water to make the steel needle sink.
  3. Explain why gold is preferred to iron in the making of jewelleries. State one way of preventing rusting.
  4. State two elements of climate. Name the equipment used to measure each of the elements stated in (i) above.

Question 4

  1. What is refraction of light? Sketch a diagram to show the path of a light ray when it travels from air to glass.
  2. Explain why it is difficult to separate iron and sulphur mixture after strong heating.
  3. Give two examples of digestive enzymes produced in humans. For each of the enzymes given in (i), name the part of the human body where the enzyme is produced.
  4. List four methods of applying fertilizers to crops.

Question 5

  1. Consider the substances listed below: carbon dioxide, gold, bronze, iron, oxygen, and ink. From the list, select the substance that: supports burning; is used as jewellery; is used for making statues.
  2. Name two diseases associated with the circulatory system of humans. State one way of preventing each of the diseases named in (i).
  3. Give two examples of each of: major plant nutrients; minor plant nutrients.
  4. State two properties of a good thermometric liquid. Give two examples of a good thermometric liquid.