Sunday, November 9, 2008

The Water Cycle


The Water Cycle
1. Print the worksheet.
2. Use the following links to complete the worksheet questions.
http://www.mbgnet.net/fresh/cycle/index.
htmhttp://www.mbgnet.net/fresh/cycle/concepts.
htmhttp://www.mbgnet.net/fresh/cycle/cycle.htm
3. Using what you know about the water cycle, create a slide show that illustrates the various parts of the water cycle.


The Water Cycle

Click on http://www.mbgnet.net/fresh/cycle/index.htm. Answer the following questions.
Define "water cycle".
What fraction of the earth’s surface is covered in water?
What percentage of all the Earth’s water is in a form that is useable to humans and land animals?
Click on http://www.mbgnet.net/fresh/cycle/concepts.htm Answer the following questions.
Evaporation is the process where a liquid changes from its __________ state to a ___________ state.
Why is evaporated water so clean?
Condensation occurs when a ____________ is changed into a __________.
Condensation is the opposite of ____________.
When the ________________ and ___________________ are right, the small droplets of water in clouds form larger droplets and precipitation occurs.
Click on http://www.mbgnet.net/fresh/cycle/cycle.htm. Answer the following questions.
Using the terms "evaporation", "condensation", and "precipitation", explain the water cycle in your own words.
What factor is most important in determining whether water is a solid, liquid, or gas?
Is the amount of water on Earth always changing or is it a constant amount?

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