“ Water,  water everywhere,  nor any drop to drink.” Part 1: Where does fresh water come from? How does it get there?
The Water Cycle <ul><li>Water does not simply fall out of the sky! </li></ul><ul><li>Well, yeah it does, but it got up the...
Evaporation <ul><li>Evaporation happens when the sun dries up water (like a puddle or an ocean) and the water turns into w...
Condensation <ul><li>Evaporation  happens when clouds start to form.  </li></ul><ul><li>Examples of condensation include c...
Precipitation <ul><li>When conditions are right, water falls from the clouds!  </li></ul><ul><li>Examples of precipitation...
Accumulation <ul><li>Accumulation means that water comes together, it accumulates or makes puddles.  </li></ul><ul><li>Exa...
Infiltration <ul><li>Infiltration occurs when water seeps through the ground and enters the water table.  </li></ul><ul><l...
Run Off <ul><li>Runoff occurs when the ground cannot absorb the water that is falling on it. </li></ul><ul><li>Runoff can ...
THAT  is where  water comes from!!
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Water, Water Everywhere, Nor Any Drop To Drink

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Describes the water cycle.

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Water, Water Everywhere, Nor Any Drop To Drink

  1. 1. “ Water, water everywhere, nor any drop to drink.” Part 1: Where does fresh water come from? How does it get there?
  2. 2. The Water Cycle <ul><li>Water does not simply fall out of the sky! </li></ul><ul><li>Well, yeah it does, but it got up there somehow! </li></ul>This presentation is a rapid prototype for an interactive animation that would be done in Flash and made available to the students as part of their webquest.
  3. 3. Evaporation <ul><li>Evaporation happens when the sun dries up water (like a puddle or an ocean) and the water turns into water vapor. </li></ul><ul><li>Evaporation is usually a very slow process (boiling water is an exception) and takes patience to observe. </li></ul>
  4. 4. Condensation <ul><li>Evaporation happens when clouds start to form. </li></ul><ul><li>Examples of condensation include clouds, dew, and steam. </li></ul><ul><li>Water molecules gather around fine particles in the air like dust. </li></ul><ul><li>Clouds and the water they contain are carried on the prevailing wind currents. </li></ul>
  5. 5. Precipitation <ul><li>When conditions are right, water falls from the clouds! </li></ul><ul><li>Examples of precipitation include rain, snow, sleet (ice pellets), and hail (large frozen rain drops). </li></ul><ul><li>Different areas of the world have different precipitation patterns depending on their climate. </li></ul>
  6. 6. Accumulation <ul><li>Accumulation means that water comes together, it accumulates or makes puddles. </li></ul><ul><li>Examples of accumulation include puddles, lakes, rivers, oceans, and groundwater. </li></ul><ul><li>Water always flows to the lowest place it can move toward. </li></ul>
  7. 7. Infiltration <ul><li>Infiltration occurs when water seeps through the ground and enters the water table. </li></ul><ul><li>Proper infiltration through clean soil cleans water by filtering it through different layers of soil. </li></ul><ul><li>Some poisons in the soil can be carried into the water table. </li></ul>
  8. 8. Run Off <ul><li>Runoff occurs when the ground cannot absorb the water that is falling on it. </li></ul><ul><li>Runoff can cause erosion of soil, and it can carry away the most important nutrient-rich topsoil with it. </li></ul><ul><li>Runoff can also carry away pesticides and other poisons, contaminating all the places it later accumulations, including contaminants washed into city storm drains. </li></ul>
  9. 9. THAT is where water comes from!!

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