science activity please please please please please please
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tell me the claass ok. .....
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2.when the blacksmith will beat an iron piece with a hammer, it will change it's shape because beating a hot iron pice will lead to it's expansion as the iron will be at the point of melting due to heat supply.
it process is called forge welding and it is only possible with that iron because of its metallic property conductivity and malleability.
2.Sonority is a property of metal where when a metal is beaten it produces sound, and those objects which produces sounds are called sonorous objects.
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from class 7th
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