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The Water Cycle
Transcript of The Water Cycle
Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam. The water vapor or steam leaves the river, lake or ocean and goes into the air.
Precipitation occurs when so much water has condensed that the air cannot hold it anymore. The clouds get heavy and water falls back to the earth in the form of rain, hail, sleet or snow.
The Water Cycle
What is the Water Cycle?
The water cycle or hydrologic cycle is a continuous cycle where water evaporates, travels into the air and becomes part of a cloud, falls down to earth as precipitation, and then evaporates again. This repeats again and again in a never-ending cycle. Water keeps moving and changing from a solid to a liquid to a gas, over and over again.
Water vapor in the air gets cold and changes back into liquid, forming clouds. This is called condensation.You can see the same sort of thing at home... Pour a glass of cold water on a hot day and watch what happens. Water forms on the outside of the glass. That water didn't somehow leak through the glass! It actually came from the air. Water vapor in the warm air, turns back into liquid when it touches the cold glass.
When water falls back to earth as precipitation, it may fall back in the oceans, lakes or rivers or it may end up on land. When it ends up on land, it will either soak into the earth and become part of the “ground water” that plants and animals use to drink or it may run over the soil and collect in the oceans, lakes or rivers where the cycle starts ALL OVER AGAIN!
Why Is The Water Cycle Important?
Water is perhaps the most important component of any ecosystem. All living organisms need water to grow and survive. In an ecosystem, water cycles through the atmosphere, soil, rivers, lakes, and oceans. Some water is stored deep in the earth.
* LIVING WISE student guide
How Does The Water Cycle Affect Humans?
The water cycle affects humans because we use the water for many things like taking a shower, washing our hands, drinking , and even to water our plants.If we didn't have rain then the plants will die Then the herbivores would die so then the carnivores would die so we would die because of dehydration, starvation or oxygen loss.We would also be in a bigger drought then we are already are.