ALL ABOUT WATER AND THE WATER CYCLE
The water evaporates constantly from the ocean because of the SUN. Then the water vapour rises. As it RISES, it COOLS, and will eventually fall as RAIN. Then, through rivers and streams, it runs BACK TO THE SEA. Along the way, it will come into contact with ROCKS, and DISSOLVE different MINERALS.
Water is a SOLVENT - it dissolves many chemicals.