Cambridge IGCSE Combined Science practice

Paper 3 structured question: Corrosion of metals

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

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Paper

Marks

Topic

Corrosion of metals

Exam-style question

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Paper 3Theory (Core)2 marks

Rusting is a common problem for metals, particularly iron.

Description

Several methods can be used to prevent rusting of metals, including painting, greasing, and applying plastic coatings.

a
Describe the methods used to prevent rusting of metals.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 3Theory (Core)2 marks

Description

Rusting can weaken metal structures and lead to failure if not addressed.

a
Evaluate the importance of preventing rust in metal structures.
Your answer
Aim for approximately 2 distinct marking points.
[2]