Heating of iron material — task. Science CBSE, Class 7 New.

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Answer the following question given below:

An ironsmith heats iron before making agricultural tools. Why is heating necessary in this process?

i. What happens to iron when it is heated before making tools?

Iron melts down into molten liquid
Iron burns and turns into ahes on heating
Iron becomes red hot, soft, and more malleable
Iron becomes black, hard, and ductile

ii. Why it is easier to shape hot iron than cold iron?

Heating reduces its hardness and increases its flexibility
Heating increases its hardness and increases its flexibility
Heating enhances its hardness and increases its flexibility
Heating reduces its hardness and decreases its flexibility

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