Now that all is set for the start of the BECE, challenge yourself and solve these questions we termed 2022 BECE Super Final Revision for Integrated Science (Practicals and Sec. B). Attempt every one of them. Note that this is not in any way a leaked paper.
2022 BECE Super Final Integrated Science Revision (Practicals & More)
INTEGRATED SCIENCE 2 – ESSAY – 1 1⁄4 hours
This paper is in two sections: A and B. Answer Question 1 in section A and any other four questions in section B
Credit will be given for clarity of expression and orderly presentation of material.
SECTION A
[40 marks]
Answer all of Question 1
- (a) In an experiment, a magnet was dragged over the surface of an iron bar from C to D several times as shown in the diagram.
Study the diagram and use it to answer the questions that follow.
(i) State the aim of the experiment. [2 marks]
(ii) State the type of method used in the experiment.[1 mark]
(iii) State the polarity of the end of the magnet used in the process, if the ends C and D of the bar become a north pole and a south pole respectively.[1 mark]
(iv) How would you test that the bar CD is a magnet? [3 marks]
(v) State one precaution that should be taken during the experiment [1 mark]
(vi) Name two methods that could be used for this process other than the one stated in (ii). [2 marks]
(b) The diagram below is an illustration of a habitat.
Study the diagram carefully and answer the questions that follow.
(i) Name the habitat. [1 mark]
(ii) What term is used to describe the interacting organisms in the habitat? [1 mark]
(iii) What term is used to describe the interaction between the organisms and the environment? [1 mark]
(iv) Name each of the organisms labeled I, II, III and IV.
I ……………………………………………………………………..
II ……………………………………………………………………..
III ……………………………………………………………………..
IV ……………………………………………………………………..
[4 marks]
(v) In what way do the organisms labeled II and IV depend on each other?
……………………………………………………………………………….
……………………………………………………………………………….
[1 mark]
(vi) Name a disease which is associated with the organism labeled III.
……………………………………………………………………………….
[1 mark]
2022 BECE Super Final Revision for Integrated Science (Practicals and Sec. B)
(c) The diagrams A and B are illustrations of an experiment to determine an
important soil component.
Study them carefully and answer the questions that follow.
(i) Name each of the parts labeled I, II, III and IV.
I………………………………………………………………….
II…………………………………………………………………
III………………………………………………………………..
IV………………………………………………………………. [4 marks]
(ii) If the set up is left for three days, state what would happen to the lime water in each of the diagrams A and B.
A…………………………………………………………………………….
B…………………………………………………………………………….
[2 marks]
(iii) What is the function of the part labeled III?
……………………………………………………………………………….
……………………………………………………………………………….
[1 mark]
(iv) Give one reason each for the answers given in (ii).
A ………………………………………………………………………….
………………………………………………………………………….
B ………………………………………………………………………….
………………………………………………………………………….
[4 marks]
(v) What soil component was studied in the experiment?
……………………………………………………………………………….
[1 mark]
(d) The diagrams below are illustrations of different laboratory set-ups used in the separation of mixtures.
Study the diagrams carefully and answer the questions that follow.
(i) Name each of the parts labeled I, II, III and IV.
I…………………………………………………………………………….
II…………………………………………………………………………….
III…………………………………………………………………………….
IV…………………………………………………………………………….[4 marks]
(ii) Name the separation method illustrated by each of the diagrams.
A…………………………………………………………………………….
B…………………………………………………………………………….
C…………………………………………………………………………….
[3 marks]
(iii) Which of the set-ups could be used to separate water from kerosene-water mixture?
………………………………………………………………………………. [1 mark]
(iv) Which of the set-ups could be used to obtain clear water from muddy water?
……………………………………………………………………………….
……………………………………………………………………………….
[1 mark]
SECTION B
[60 marks]
Answer four questions only from this section
- (a) Name the particle(s) found in the:
(i) nucleus of the atom;
……………………………………………………………………………………
……………………………………………………………………………………
(ii) shell of the atom.
……………………………………………………………………………………
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[3 marks]
(b) (i) Give two reasons why clotting of blood is important.
……………………………………………………………………………………
……………………………………………………………………………………
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[2 marks]
2022 BECE Super Final Revision for Integrated Science (Practicals and Sec. B)
(ii) State two modes of transmission of influenza disease.
……………………………………………………………………………………
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[2 marks]
(c) A cube of sugar has a mass of 30 g and occupies an area of 4 cm2 with a height of 2 cm. Calculate the density of the sugar.
……………………………………………………………………………………
……………………………………………………………………………………
……………………………………………………………………………………
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[4 marks]
(d) (i) What is a crop pest?
……………………………………………………………………………………
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[2 marks]
(ii) Give one example each of the following methods of controlling pests on a crop farm;
(α) cultural method;
………………………………………………………………………………
[1 mark]
(β) biological method.
………………………………………………………………………………
[1 mark]
- (a) (i) State two of the farming systems.
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(ii) State three factors that bring about the difference in the farming systems in crop production.
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[5 marks]
(b) Explain briefly why worn-out vehicle tyres should not be used on the vehicles.
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[3 marks]
2022 BECE Super Final Integrated Science Revision (Practicals & More)
(c) (i) What is vegetative propagation?
………………………………………………………………………………………
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(ii) Name the organ used to propagate each of the following plants vegetatively:
(α) Onions;
………………………………………………………………………………
(β) Cocoyam.
………………………………………………………………………………
[4 marks]
(d) Draw the electron configuration for calcium atom showing the distribution of the
electrons in its shell. [Ca = 20]
[3 marks]
- (a) (i) State the two characteristics of transistors.
………………………………………………………………………………
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(ii) State two uses of transistors.
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[4 marks]
(b) (i) State two sources of organic matter in soil.
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(ii) State two ways by which organic matter in soil can be maintained.
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[4 marks]
(c) (i) Name the components of an atom which determine each of the following quantities:
(α) mass of an atom;
…………………………………………………………….
(β) charge of an atom;
…………………………………………………………..
(ii) why is an atom electrically neutral?
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[3 marks]
(d) (i) State two functions of water in the body.
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(ii) write the word equation for aerobic respiration.
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[4 marks]
- (a) (i) Explain briefly what is meant by the term science.
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[3 marks]
(ii) Give two reasons why integrated science should be studied.
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[2 marks]
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(b) (i) What is staking?
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[2 marks]
(ii) State two precautions to be taken when selecting staking materials.
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[2 marks]
(c) (i) State two ways in which photosynthesis is important to plants and animals
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[2 marks]
(ii) State one chemical method of controlling mosquitoes.
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[1 mark]
(d) An atom of an element has an atomic number of 10 and a mass number of 20.
Determine the number of :
(i) protons;
……………………………………………………………………………………
(ii) electrons;
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(iii) neutrons.
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[3 marks]
- (a) (i) Explain the term electric current.
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(ii) Name the instrument used to measure electric current.
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(iii) State the SI unit of electric current.
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[4 marks]
(b) (i) State three ways in which pruning is important.
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(ii) State one way in which soil water is important to plants.
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[4 marks]
(c) List four processes that can change matter from one state to another.
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[4 marks]
(d) Tabulate three differences between photosynthesis and respiration.
[3 marks]
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