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Tarnishing — Edexcel GCSE Design and Technology Definition

Home
Design and Technology
Key terms
Tarnishing

GCSE Design and Technology · key term

Tarnishing

Definition

A dull surface layer formed by reactions between a metal, such as silver or copper, and its surroundings.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Design and Technology · 1DT0

Specification 2.8.1 · Paper 1

Other metals, such as copper and silver, can develop a dull surface through tarnishing. Repeated handling can also scratch or wear a surface.
Revise: Finishes and Treatments

Edexcel Design and Technology past papers

Related key terms

Anodising
Barrier protection
Corrosion
Dip coating
Electrolyte

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