Any product of the condensation of atmospheric water vapor that falls under gravity.

The amount of water vapor in the air.

The process by which water changes from a liquid to a gas or vapor.

The process by which water vapor changes into liquid.

The process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers.

An underground layer that contains groundwater.

Water evaporates from the surface of the earth, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation.

It is an important part of this because it is responsible for 15% of the atmosphere’s water vapor.

The main forms include drizzle, rain, sleet, snow, graupel and hail.

The flow of water occurring on the ground when excess rainwater, stormwater, meltwater, or other sources, can no longer soak into the soil.