1. Welcome to my dear
friends and
respected teachers
this project is about
Water and its
important

2. Water cycle
•
The water cycle is also called the
hydrologic cycle. Basically, it
involves three steps: water collected in
an ocean or other source

evaporates into the air and becomes
clouds; the water then gathers
together to become heavy enough to
fall as rain. The rainwater
eventually collects in pools of water
which evaporate again. This is a
cycle
•

5. everywhere, so let's all have a drink
(or so we all learned as kids, right?), but
it's definitely not as easy as that these
days. In honor of World Water Day (which
may or may not have been today), let's
sit back and enjoy an explanation of the
water cycle.
• Also known as the hydrologic cycle, the
water cycle describes the process by
which the various forms of water move
about the planet in a fairly constant
balance. But just because it's fairly
balanced doesn't mean we have all the
water we need, whenever we want it. But
first, what is the cycle, really?
• What is the water cycle?
• Like all circular items, the water cycle
has no true beginning and no end, though
the water changes state from liquid to
solid -- as ice and snow, for example -and as vapor. The cycle is the process by
•
water ,

6. • US Climate
Change Science
Program / US
Global Change
Research
Program, Suite
250, 1717
Pennsylvania
Ave, NW,
Washington, DC
20006.

7. • US Climate
Change Science
Program / US
Global Change
Research
Program, Suite
250, 1717
Pennsylvania
Ave, NW,
Washington, DC
20006.

9. • US Climate
Change Science
Program / US
Global Change
Research
Program, Suite
250, 1717
Pennsylvania
Ave, NW,
Washington, DC
20006.

10. Saving water

14. Dams

20. T