Question

3. In making a solid metal object, a metal is poured into a container called a mould.
The Mould give shape to the metal when it cools and hardens. How does metal casting
make use of the different characteristics of liquids and solids? [

Answer 1

Answer:

pta nhi bilkul nhi pta ek bhi nhi i dont know

Answer 2

The casting shows  the change in the shape of the metal is due to heating and freezing temperature.

• The metal casting means change in the shape of solids. As the solids have the capability to change its shape by heating and then freezing it.
• When we need to shape a metal, we heat it till it form change into liquid and then give it a shape.
• After giving the shape we freeze that shape so that it becomes solid.
• That how we can cast different shapes. Heating and freezing is the concept of moulds.