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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Corrosion of metals

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Attempt questionCorrosion of metals revisionRevise the key idea

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2

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Corrosion of metals

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Paper 3Theory (Core)2 marks

Rusting is a common problem for iron objects exposed to the environment.

Description

Barrier Methods for Rust Prevention

Barrier methods are used to protect iron from rusting by preventing contact with moisture and oxygen.

  1. a

    Explain how barrier methods work to prevent rusting.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Corrosion of metals

Paper 3Theory (Core)2 marks

Description

Importance of Rust Prevention

Preventing rust is crucial for maintaining the integrity of iron structures.

  1. a

    Describe two barrier methods used to prevent rusting.

    Aim for approximately 2 distinct marking points.

    [2]