RUST and CORROSION.

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Presentation transcript:

RUST and CORROSION

Rusting  When Iron is exposed to the air – a bright orange compound called rust forms on the surface. It breaks down iron objects. Rusting requires water and air to be present.

How do we prevent rusting? Many methods are used to prevent water and air reaching the iron atoms. Think of three and list them down …..

What did you come up with? Painting Plastic Coating Tin Plating Galvanising Chrome plating Enamelling Alloying

Activity Time  Turn to page 91 – Hook Books and copy and complete activity 7 (Hint: You will be tested on this is your assessment)….