it depends on what solid you are talking about, every element has different melting points
Solid changes to liquid when a substance reaches it's melting point. For example, water's melting point is 0 degree celcius.
change of a liquid to a solid
The change from liquid to solid is called freezing.
Sure, change from solid to liquid is a physical change
when ice was solid change liquid because sun was very hot. ice will change liquid change back solid again
Freezing is the change in state from liquid to solid.
change of a liquid to a solid
The change in state from a solid to a liquid is called melting.
the liquid to solid evolution
a loss in energy cause the change from liquid to solid like-wise a rise in energy causes a change from solid to liquid.
butter
Decreasing the temperature a liquid become a solid.