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The water cycle copia

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The water cycle copia

  1. 1. The Water Cycle
  2. 2. How old is your water? Have a look at the water. It has been around about as long as the Earth has! It was there for the dinosaurs, for knights and squires. And you thought us teachers were old!
  3. 3. Evaporation Heat from the Sun causes water on Earth (in oceans, lakes etc) to evaporate (turn from liquid into gas). It rises into the sky. This water vapour collects in the sky (clouds).
  4. 4. Condensation As water vapour in the clouds cools down it becomes water again. We call this condensation. Where in the classroom can we find condensation?
  5. 5. Precipitation Water falls from the sky. We call this precipitation. This can be as: Rain ● Snow ● Hail ● Sleet ●
  6. 6. Collection Oceans, lakes and Rivers ‘collect’ the water that has fallen. Then the whole process is done again.
  7. 7. Why is it useful? We need the water cycle so we can drink fresh water. We also need it to water plants. We can’t use sea water because it is too salty!
  8. 8. Nice animation http://www.bbc.co.uk/schools/riversandcoasts/water _cycle/rivers/index.shtml

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