The Water Cycle
The water cycle, also known as the hydrological cycle, is the continuous process by which water moves from the Earth's surface to the atmosphere and back again. It is a crucial system that ensures the availability of water for all living organisms on our planet.
Evaporation
Water from oceans, rivers, lakes, and other bodies of water is heated by the sun and turns into water vapor. This process is known as evaporation.
Condensation
As the water vapor rises into the atmosphere, it cools and condenses to form clouds. This process is known as condensation.
Precipitation
When the clouds become saturated with water vapor, precipitation occurs in the form of rain, snow, sleet, or hail.
Runoff
Some of the precipitation flows over the land as runoff and collects in rivers, streams, and oceans, where it can evaporate and continue the cycle.
Infiltration
Some of the precipitation infiltrates the ground and becomes groundwater. This groundwater can be stored in aquifers or eventually make its way back to the surface through springs.
Importance of the Water Cycle
The water cycle is essential for maintaining the balance of water on Earth. It helps to replenish freshwater sources, distribute nutrients, and regulate the Earth's temperature. Without the water cycle, life on Earth would not be sustainable.