# The water cycle by Shana Trotter

25 de Feb de 2012
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### The water cycle by Shana Trotter

• 1. By Shana Trotter
• 2. Earth’s Water  Limited Supply  Never new water, always the same  Water cycle allows us to have water
• 3. Three States  Solid  Liquid  Gas
• 4. Water Cycle Overview
• 5. Evaporation  Water changes from liquid to gas  Water vapor collects in the air  Evaporates from lakes, oceans, puddles, etc.
• 6. Evaporation Experiment  Step 1: fill a glass measuring cup with water  Step 2: wait one day and mark the new water level  Step 3: repeat step 2 over several days and compare the new water level to the original level  You will see evaporation!
• 7. Condensation  Water vapor in the air changes from a gas to a liquid  Cool temperatures cause this  The liquid collection forms clouds
• 8. Condensation Experiment  Step 1: fill a glass with ice  Step 2: let it sit on the counter for a few minutes  Step 3: observe the water droplets that appear on the outside of the glass  How did they get there?  Condensation
• 9. Precipitation  Clouds can only hold so much water  They get heavy and the water must leave  Forms  Rain  Sleet  Snow  Hail
• 10. Forms of Precipitation  http://www.youtube.com/watch?v=kFFHo4T-g4E
• 11. Collection  Water falls back to earth and could land  In oceans, lakes, rivers, etc.  On land  Water on land may runoff into a body of water or become groundwater
• 12. Groundwater  Water that seeps into the ground following precipitation
• 14. Sources  Slide 3 Water Cycle Diagram: http://www.kidzone.ws/water/  Slide 5 Picture: ga.water.usgs.gov  Slide 6 Picture: melindahinsonneely.com  Slide 8 Picture: etc.usf.edu  Slide 10 Video: uploaded by afreshour http://www.youtube.com/watch?v=kFFHo4T-g4E  Slide 11 Picture: lvwash.org  Slide 12 Picture: myteacherpages.com  Slide 13 Animation: cnobleza.wordpress.com