melting
This is known as solidifying, or freezing.
A solute
Freezing
solidification
The process in which a liquid is turned to a solid is called "freezing".
Soild
Changing a chocolate from soild to liquid requires the absroption of energy.
Toothpaste is a liquid.
Liquid.
Freezing.
the process of water changing into liquid is called evaporation
WATER! If you put water in a cup and leave it in the freezer it will turn to an ice cube then if you leave it somewhere warm and cosy it will turn back to a liquid again. Try it for yourself even.