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The Water Cycle

The Water Cycle

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Author: Gianna Lucchetti
Description:

water cycle lesson

  • ESS2.C: The Roles of Water in Earth’s Surface Processes
    • Water is found in the ocean, rivers, lakes, and ponds. Water exists as solid ice and in liquid form. (2-ESS2-3)
  • Students will be able to understand the cycle of water and know that water is found in different places and in different forms. 
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Tutorial

Have you ever watched a bike wheel go in a circle?  Water goes in a cycle just like a wheel goes around and around!

https://pmm.nasa.gov/education/water-cycle

Source: Precipitation Education

Source: youtube

Evaporation

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.

Source: google images

Condensation

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.

Source: google images

Precipitation

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.

Source: google images

Collection

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! 

Source: study.com

Review of the water cycle