1. Earth Science Grade 5: Condensation and Evaporation Lisa Kirk EED 602 (online)

2. Grade 5, Standard Set 3: Earth’s Water 3. Water on Earth moves between the oceans and land through the process of evaporation and condensation. 3. Water on Earth moves between the oceans and land through the process of evaporation and condensation. Students know: a.Most of Earth’s water is in the oceans, which cover most of Earth’s surface. b. Liquid water evaporates, turns into water vapor and back into a liquid when cooled or as a solid if cooled below the freezing point of water. c. Water vapor in the air moves and can form fog or clouds, and can fall to Earth as rain, hail, sleet, or snow. d. The amount of fresh water located in rivers, lakes, underground sources, and glaciers is limited and that its availability can be extended by recycling and decreasing water use. e. The origin of the water used by their local communities.

3. Evaporation, Condensation and Precipitation: The main processes of the water cycle Click on the picture to find out more!!!

4. Evaporation  The transformation of a liquid into a gas.  The sun’s heat raising the temperature of water and turning it into a gas.  Water from earth’s rivers, and oceans that is heated and travels through the air as a gas.

5. Stages of Evaporation 1. Water is warmed by the sun 3. Water particles rise as a gas or vapor 2. As the water heats, it turns into a gas.

6. Condensation  Water vapor particles rising through the air.  You can't see it, but air contains a lot of water.  When air gets cold, the water vapor condenses into clouds.  Warm air can hold more water vapor than cold air.  Warm air can hold more water vapor than cold air. –When warm air holds a lot of water vapor, the air feels sticky and damp. –When warm air holds a lot of water vapor, the air feels sticky and damp.  The amount of water in the air is called humidity.

7. The Stages of Condensation 1. Water vapor particles rising 2. Particles forming groups 3. Water particles grouped to form bonds

8. Precipitation is…  …the process by which water falls back down to earth as rain, snow, or hail.  Depending on the temperature, water may fall to earth as: –liquid (rain), –semi-solid (snow), –solid (hail)

9. Distribution of Water on Earth  Most of the Earth’s water is in oceans.  Oceans contain salt water and covers most of the earth’s surface.  Of the final 1%, only 4/10 of water comes from rivers, a major source of the water we use. Click on the graph to learn more!

10. Where is the Water We Use?

11. California Water Sources and Usage  Much of the water we depend on in Southern California comes from sources located in the northern part of the state.

12. What is Fresh Water Used For?

13. Recycle and Conserve Water!  Reclaimed waste water frees up fresh water that can be used for drinking water  California is a good place to how reclaimed waste water is being used  The East Bay Municipal Utility District water reclamation project saves about 5.5 billion gallons per year

14. Bibliography  http://www.balladtree.com/water.html http://www.balladtree.com/water.html http://www.balladtree.com/water.html  http://www.cde.ca.gov./board/pdfscience.pdf http://www.cde.ca.gov./board/pdfscience.pdf  http://www.ladwp.com/watersupply/rec http://www.ladwp.com/watersupply/rec  http://www.metaphor.no/samples_flythrus.html http://www.metaphor.no/samples_flythrus.html  http://www.naturegrid.org.uk/rivers/graphics/wcmin i-ev.gif http://www.naturegrid.org.uk/rivers/graphics/wcmin i-ev.gif http://www.naturegrid.org.uk/rivers/graphics/wcmin i-ev.gif  http://www.schoelles.com/water http://www.schoelles.com/water  http://www.sesd.org/tech/grade5/science http://www.sesd.org/tech/grade5/science  http://ga.water.usgs.gov/edu/waterproperties.html http://ga.water.usgs.gov/edu/waterproperties.html