The water cycle depends on the processes of evaporation and condensation. Evaporation happens when water molecules at the surface of a liquid move fast enough to break away from other water molecules ...

When a cup filled with cold water is exposed to air, the water in the air condenses onto the side of the cup. If the cup of cold water is not exposed to air, no condensation will form. The fast-moving ...

It follows a cycle of evaporation, condensation, precipitation and collection. The sun heats up water on land, in rivers, lakes and seas and turns it into water vapour. The water vapour rises into ...