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)2 marks

Understanding the treatment of domestic water is crucial for public health.

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]

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Paper 3Theory (Core)3 marks

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]