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)….