Rust

Question 1

rusting:

Answer 1

the corrosion of iron

Question 2

corrosion:

Answer 2

a chemical reaction that wears away a metal. Air, water or chemicals in air and water, as well as many household substances, can be corrosive. Many acids and other corrosive substances are dangerous.

Question 3

rust:

Answer 3

a brown substance formed when iron reacts with oxygen and water

Question 4

surface protection:

Answer 4

coating over a metal surface to prevent corrosion

Question 5

galvanising:

Answer 5

protecting a metal by covering it with a more reactive metal that will corrode first