Flexi Says: Evaporation changes a liquid to a gas, but it doesn’t involve boiling. The boiling point of a liquid is the temperature at which the vapor pressure of the liquid becomes equal to the surrounding pressure. Instead during evaporation that molecules can leave the surface even when vapor pressure is less than atmospheric pressure. Evaporation occurs when particles at the surface of a liquid gain enough energy to escape into the air. This happens without the liquid becoming hot enough to boil.
