The water molecules gain energy causing them to move rapidly and loss their attraction to each other; forming water vapour.
One reference work states: "The water cycle consists of four distinct stages: storage, evaporation, precipitation and runoff. Water may be stored temporarily in the ground, lakes and rivers and in ice caps and glaciers. It evaporates from the earth's surface, condenses in the clouds, falls back to the earth as precipitation (rain or snow), and eventually either runs into the seas or reevaporates into the atmosphere. Almost all the water on the earth has passed through the water cycle countless times." - Microsoft Encarta Reference Library 2005. (info from 11/15/05 Watchtower on Jehovah's Witnesses official website)
Individual molecules of water have (or obtain by random thermal collisions) sufficient energy to leave the liquid surface and drift away into the air.
During evaporation liquid water is transformed in gaseous water.
The evaporated water forms clouds.
The liquid water is transformed in a gas (vapors).
Its molecules become heated.
Energy is conserved. It becomes the the dynamic energy of the water molecule.
Salts are obtained as a residual solid.
The density of water increase, also the humidity of the atmosphere; the temperature decrease.
Water in an open system is allways evaporated.
The water is evaporating leaving the impurities behind. When condensed and recollected, it is pure water.
You can call evaporating water by a number of names, but the most common are water vapor and steam.
By evaporating the sea water. What remains is salt.
it is boiling
yes the water pump would be bad if its evaporating the water very quick.