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Water Cycle


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The Water Cycle Mystery

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Water Cycle

  1. 1. The Water Cycle Ms. Hyche
  2. 2. A Mystery…… <ul><li>Waiting for the subway, Mr. I.M. Richman slips and falls in a puddle of water. </li></ul><ul><li>Above him, he sees water dripping from some pipes. They must be leaking! I.M. Richman decides to sue Pip Peterson, the maker of the pipes. </li></ul><ul><li>Pip Peterson asks Science Court attorney Alison Krempel to defend her company. &quot;Our pipes don't leak, Ms. Krempel!&quot; </li></ul>
  3. 3. Let’s Pause <ul><li>Mr. Richman slipped and fell, but the company says their pipes do not leak. </li></ul><ul><li>Who is telling the truth and who is lying? </li></ul>
  4. 4. Mystery continues….. <ul><li>In Science Court, Alison Krempel calls an expert witness, meterologist Maria Hernandez. &quot;Water in the air condensed on the outside of the pipes and dripped onto the floor. The pipes weren't leaking,&quot; says Maria. </li></ul><ul><li>&quot;Water in the air? Do you expect us to believe that there is water roaming around in the air?&quot; asks Doug Savage, I.M. Richman's attorney. </li></ul><ul><li>Judge Stone and the Science Court jury must decide: Is Pip Peterson guilty of leaky pipes? Or could the water have come from the air? </li></ul>
  5. 5. Water Cycle <ul><li> </li></ul><ul><li>When and why does it rain? </li></ul><ul><li>What happens to the rain water once it reaches the ground? </li></ul><ul><li>What happens to the water when the sun comes out? </li></ul><ul><li>What happens to the vapor in the air when it gets cold? </li></ul>
  6. 6. Evaporation: <ul><li>Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam.  </li></ul><ul><li>The water vapor or steam leaves the river, lake or ocean and goes into the air. </li></ul>
  7. 7. Transpiration <ul><li>Do plants sweat? </li></ul><ul><li>Well, sort of.... people perspire (sweat) and plants transpire. </li></ul><ul><li>Transpiration is the process by which plants lose water out of their leaves. </li></ul><ul><li>Transpiration gives evaporation a bit of a hand in getting the water vapor back up into the air. </li></ul>
  8. 8. Condensation <ul><li>Water vapor in the air gets cold and changes back into liquid, forming clouds. This is called condensation. </li></ul><ul><li>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. </li></ul>
  9. 9. Precipitation <ul><li>Precipitation occurs when so much water has condensed that the air cannot hold it anymore.  </li></ul><ul><li>The clouds get heavy and water falls back to the earth in the form of rain, hail, sleet or snow. </li></ul>