However, as observational techniques that used to be restricted to research applications are entering operational mode, it is becoming possible to routinely measure evaporation and soil moisture ...
Evaporation close evaporationThe process in which a liquid changes state and turns into a gas. is used to separate a soluble solid from a liquid. For example, copper sulfate is soluble in water ...
And this process is called evaporation. When a gas cools down, it can change state back into a liquid. So when the warm steam hits the surface of, say, a cold mirror it turns back into water again.