water that has soaked into the surface of earth and is stored underground
ground water
process where plants releases water vapor into the air through its leaves
transpiration
process in which gravity pulls water down hills and slopes
runoff
the continuous movement of water between earth’s surface and the atmosphere.
water cycle
water falls from the clouds in the form of rain, sleet, snow, or hail
precipitation
source of energy that drives the water cycle
sun
energy from the sun turns water into a gas called water vapor
evaporation
when water vapor in the air cools and changes from a gas to a liquid
condensation
process where water collects in lakes and oceans
accumulation