This is known as solidifying, or freezing.
melting
Changing a chocolate from soild to liquid requires the absroption of energy.
melting
Soild
Soild
Toothpaste is a liquid.
Liquid.
evaporation
Freezing.
When any liquid changes to a solid it as too be frozen or cooled to such a state where the molecule join together to make one uniform state (aka soild)
By melting
What is a soild