"When warmed by the sun, water on the surface of oceans and freshwater bodies evaporates, forming a vapor. Water vapor rises into the atmosphere, where it condenses, forming clouds. It then falls back to the ground as precipitation." it rains then the runoff water collects into a body of water. the "collection" is part of the water cycle so after it rains then the water may end up in a body of water because of collection. hopefully this helps a bit :) i guess if a bunch of water like collected together or something then it could form a body of water
