Title Description:
Metals are an important part of the history of humankind. The first stage i...Metals are an important part of the history of humankind. The first stage in using a metal is to remove it from its ore, a metal-bearing mineral or rock. Most ores are oxides, so we need to find ways to remove oxygen from the metal oxide. This is called reduction. The most reactive metals are the hardest to extract, so sometimes a metal might be expensive, even though it is not particularly rare. Aluminium and iron are two important metals. We will learn about how they are extracted from their ores. Almost all iron is converted into steel. We will consider how various metals, metal alloys and metal compounds are useful to us. The title will also look at how metal extraction can cause environmental problems and how the recycling of metals can help to reduce this.
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