Science Section B

This is the Section B (Theory) part of the BECE Science exam. Students will be required to answer structured questions that test their understanding of core science concepts, processes, and practical applications. Answers must be typed clearly and in complete sentences.

Question 1

State three observable features of an animal cell and two functions of a nerve cell.

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Question 2

Explain briefly the scientific principle underlying each of the following waste management practices: (i) Composting; (ii) Recycling; (iii) Incineration.

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Question 3

State two precautions that must be taken to obtain reliable results when determining the volume of an irregular object using water displacement.

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Question 4

State three safety precautions to prevent accidents during the use of liquefied petroleum gas in the home.

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Question 5

Explain briefly why the left lower part of the heart has a thicker muscle.

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Question 6

Define the term light emitting diode (LED) and mention two devices that use LED in their operation.

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