RUSTING

Which metals rusts?

• Copper

• manganese

• iron

• potassium

What environmental element assists rusting?

• nitrogen

• oxygen

• carbon

• hydrogen

A rusting bicycle

• physical change

• chemical change

What is the chemical name given to Rust ?

• Iron dioxide

• Iron oxide

• Steel oxide

• Carbon dioxide

Sometimes I notice rust on the metal part of the nozzle of my garden hose, how or why scientifically does this happen?

• water running through the nozzle causes it to rust

• rust or corrosion appear on metals over time

• nozzle was damaged and exposed to water

• iron in metal nozzle combined with oxygen in the air to form rust or iron oxide

• A

• B

• C

• D