Evaporation is the process in which water rises and turns into gas. When the water is heated up by the sun or anything else for a matter of fact, it changes phases from a liquid to a gas. Heat is a critical part of the water cycle. The air has to be a certain temperature to make the water rise. Water can also evaporates in cold temperatures but it takes a lot more time and is a much slower process. Evaporation is the thing that supports the surface to are part of the water cycle.
Evaporation
a process in which something is changed from a liquid to a vapor without its temperature reaching boiling point