BECEzone

THE WEST AFRICAN EXAMINATIONS COUNCIL
GHANA

Basic Education Certificate Examination

SCIENCE 2014

THEORY QUESTIONS

ESSAY

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


PART I
[40 marks]


Answer all of Question 1

    1. The diagram below represents the stages in the life cycle of a mosquito.

      Study the diagram carefully and answer the questions that follow.

      1. Name each of the stages labelled I, II, III and IV.

      2. State how stage II obtains oxygen.

      3. 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.

      1. Name each of the parts labelled I, II, III, IV, and VI.

      2. Name the separation method represented by each diagram.

      3. Which of the set-ups is used to obtain clear water from muddy water?

      4. 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.

      1. Identify each of the instruments labelled I, II, III, IV, and V.

      2. State one use of each of the instruments labelled I, II, III, and IV.

      3. 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.

      1. Name each of the parts labelled I, II, III, and IV.

      2. State one function each of the parts labelled II and IV.

      3. Name two farm animals that possess this type of digestive system.

      4. Mention two diseases which affect this class of farm animals.

BackSECTION B