Evaporation
Evaporation is the main part of the water cycle.It is the process of a liquid when it becomes gas or vapour due to an increase in temperature or pressure.
Evaporation can happen at any temperature. If the temperature is high evaporation can happen quickly but if the temperature is low the evaporation happens slowly, some liquids evaporate more quickly than other liquids.
The earth has a limited amount of water. but the water keeps going around and around and so, it is called the water cycle .
Other things that are included in the water cycle are condensation, precipitation and collection.