Metal is made from metal ores, which have to be mined and processed to transform them into useable materials. It is rare for metals to be used in pure form. Normally they are mixed with other metals to improve their properties: the mixture is called an alloy.

There are two main types of metal alloys, ferrous and non-ferrous. Ferrous metals contain iron and stick to a magnet. Non-ferrous metals do not contain iron. Both types of metals can be recycled.

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