Water on Earth

Reservoir: A reservoir is a large natural or artificial lake used to store water for various purposes, such as irrigation, drinking water, and hydroelectric power.

Sublimation: Sublimation is the process where a solid changes directly into a gas without becoming a liquid first.

Aquifer: An aquifer is a geological formation that can store and transmit groundwater, allowing it to flow through the soil and rock.

Water table: The water table is the upper surface of the zone of saturation in an aquifer, where the soil or rock is fully saturated with water.

Evaporation: Evaporation is the process by which liquid water turns into water vapor, usually due to heat.

Precipitation: Precipitation is any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface, including rain, snow, sleet, and hail.

Water cycle: The water cycle is the continuous movement of water on, above, and below the surface of the Earth, involving processes like evaporation, condensation, and precipitation.

Condensation: Condensation is the process by which water vapor in the air cools and changes back into liquid water, forming clouds or dew.

Salinity: Salinity is the measure of the amount of salt dissolved in water, often expressed in parts per thousand (ppt).

Groundwater: Groundwater is water that is found underground in aquifers, filling the spaces between soil, sand, and rock.