Materials

A type of steel not needing a protective coating, as it doesn't rust.

• stainless steel

• aluminium

• timber

A metal used to make brass, and in galvanised coatings on steel.

• hardwood

• zinc

• ore

The predominant metal in steel

• hardwood

• bronze

• iron

A dense poisonous metal.

• lead

• ore

• stainless

Rocks from which metals can be extracted.

• steel

• ore

• zinc

An alloy made from copper and tin.

• stainless

• lead

• bronze

Timber from pine trees.

• softwood

• pure metals

• ore

Timber from deciduous trees.

• rubber

• copper

• hardwood