Iron is a very common metal. In nature it is not available in pure form. It is melted in the furnace. It is a very hard metal. When iron is heated, it becomes red and soft. Iron is made into steel by mixing charcoal with it. If a piece of iron is kept in the open air, It gathers rust. We cannot do our farming without iron. At present iron is the most use full metal. Many articles of our daily use are made of iron.

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