sábado, 7 de marzo de 2015

Do you know that the water you use today has been around since the earth was formed? It's true. New water can't be made. Earth's water cycles through many uses and through different forms. It may be liquid (water), solid (ice), or water vapor in the air. It is reused over and over again.

The water you drink today ...
...is the same water dinosaurs drank millions of years ago.

Yes, I know you are thinking: How disgusting!, How revolting!

The water cycle is made up of four stages:
  1.  Evaporation is when the sun heats up water in rivers, lakes, and oceans, and turns the water into vapor, and it goes into the air.
  2. Condensation is when the vapor gets colder, turns back into liquid, and forms clouds.
  3. Precipitation happens when the air can't hold anymore condensation. Precipitation can be rain, snow, or hail.
  4. Collection is when the water falls onto the earth, and starts the cycle all over again.

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