Melting and recasting iron involves a change of state from solid to liquid and then back to solid. This process is a physical change and iron can be melted and recast multiple times without any change in its chemical properties.
Melting and recasting iron involves a change of state from solid to liquid and then back to solid. When iron is heated to its melting point, it turns into a liquid state, and this is called melting.
The change in state from solid to liquid is a physical change because the composition of the iron remains the same.
When the molten iron is cooled down, it solidifies and forms a new object or shape. This process is called recasting.
The change in state from liquid to solid is also a physical change. Iron can be melted and recast multiple times without any change in its chemical properties.