jueves, 9 de enero de 2014

UNIT  6  HYDROSPHERE
The hydrosphere is all the water on the Earth. We can find water in the three states:
  • solid: snow, ice
  • liquid: oceans, seas, rivers, lakes
  • gas: water vapour
http://elearning.stkc.go.th/lms/html%20/earth_science/LOcanada1/102/1_en.htm

The water cycle represents the constant circulation of water between the Earth´s surface and the atmosphere:


Here you have an interactive lesson and game about the water cycle:
 
http://www.turtlediary.com/grade-2-games/science-games/the-water-cycle.html

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