the downward movement of water from the land surface into the soil or porous rock. Ground water begins as precipitation. Once water infiltrates the soil it can move vertically and horizontally through the soil.

condensation falling onto land in the form of rain, sleet, hail, snow, and mist. Only 10% of water evaporated falls as precipitation.

is the water that runs off land back into an ocean or river.

the opposite of evaporation; it occurs when air cools and the vapor collects into liquid form.

occurs when the sun heats water up and it becomes vapor in the air.

Condensation

Transpiration

Evaporation

Precipitation