Cambridge IGCSE Combined Science practice

Paper 3 structured question: Fuels

Try the question first, then check the answer and practise the same topic again.

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Paper

Marks

Topic

Fuels

Exam-style question

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Paper 3Theory (Core)2 marks

Natural gas is widely used in households and industries.

Description

Natural gas is primarily composed of methane, along with small amounts of other hydrocarbons and impurities.

a
Describe the composition of natural gas and its primary component.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 3Theory (Core)3 marks

Description

Methane is used as a fuel in various applications, including heating and electricity generation.

a
Explain the significance of methane in energy production.
Your answer
Aim for approximately 3 distinct marking points.
[3]