Cambridge IGCSE Combined Science practice

Paper 3 structured question: Water

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

At a glance

Paper

Marks

Topic

Water

Exam-style question

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Paper 3Theory (Core)3 marks

Water treatment processes are essential for ensuring safe drinking water.

Description

The treatment of domestic water supplies involves several processes including sedimentation, filtration, carbon treatment, and chlorination.

a
Outline the processes involved in treating domestic water supplies.
Your answer
Aim for approximately 3 distinct marking points.
[3]

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Paper 3Theory (Core)2 marks

Description

Domestic water treatment involves several key processes to ensure safety and quality.

a
Explain the importance of using activated carbon in water treatment.
Your answer
Aim for approximately 2 distinct marking points.
[2]