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1. THE GLOBAL WATER CYCLE Kumu Pa Nakea October 2014
2. WHY DO WE CARE ABOUT WATER?
3. All life on Earth requires some form of water to
survive.
4. Ola I ka wai a ka opua There is life in the water from the
clouds! ~ Pukui Olelo Noeau No. 2482 WATER IS A VITAL SUBSTANCE
Water is necessary for the development & nourishment of
life.
5. WHY WE CARE ABOUT WATER? Can you survive without water?
Where do you get the water you use at home? Where is most of the
water on Earth located? Is there such a thing as new water? What
are the processes involved in the global water cycle?
6. Oxygen HydrogenHydrogen 75% of Earth is covered by water,
and water richclouds fill the sky. Earth is a water planet! Water
Molecule H20
7. WHERE IS THE WATER? 90% of the water is in the Ocean.
Freshwater seems abundant, but is in limited supply. Only 3% of our
planet is freshwater. 2% is contained in the glaciers & ice
sheets 1% is found in lakes, rivers & wetland areas
8. WHAT IS THE WATER CYCLE? WHAT ARE SOME COMPONENTS OF THE
WATER CYCLE?
9. WATER CYCLE Describes how the water evaporates from the
surface of the earth, rises into the atmosphere, cools and
condenses into rain or snow in clouds, and falls again to the
surface as precipitation. The sun heats the Earths surface water,
causing that surface water to evaporate (gas). This water vapor
then rises into the earths atmosphere where it cools and condenses
into liquid droplets.
10. WATER CYCLE These droplets combine and grow until they
become too heavy and fall to the earth as PRECIPITATION (liquid if
rain, solid if snow). The water falling on land collects into the
oceans, where it will once more evaporate. The cycling of water in
and out of the atmosphere is a significant aspect of weather
patterns on Earth.
11. THE WATER CYCLE IN HAWAII
12. COMPONENTS OF THE WATER CYCLE Evaporation &
Transpiration Condensation Precipitation Infiltration
Collection
13. EVAPORATION When water is heated by radiant energy it turns
into water vapor.
14. TRANSPIRATION Transpiration is evaporation from
plants.
15. CONDENSATION When water vapor cools, molecules join
together and form clouds.
16. PRECIPITATION When clouds get heavy the water falls as
rain, sleet, snow or hail.
17. INFILTRATION The process by which water on the ground
surface enters the soil.
18. COLLECTION This is when water that falls from the clouds as
rain, snow, hail or sleet, collects in the oceans, rivers, lakes
and streams.
19. WATER IS PRACTICALLY EVERYWHERE ON EARTH. Water is the only
common substance that can exist naturally as a gas, liquid or solid
at a small range of temperatures & pressures.
20. WHAT PARTS OF THE WATER CYCLE REQUIRE ENERGY FROM THE
SUN?
21. ENERGY FROM THE SUN STAGES THAT REQUIRE SOLAR RADIATION
(HEAT). Solar Radiation Evaporation Transpiration Infiltration
Runoff Precipitation Condensation Groundwater
22. WHICH PARTS OF THE WATER CYCLE REQUIRE THE WATER MOLECULES
TO GIVE AWAY HEAT ENERGY (COOL DOWN)?
23. CONDENSA TION STAGES THAT REQUIRE WATER TO GIVE OFF HEAT
(COOL DOWN). Solar Radiation Evaporation Transpiration Infiltration
Runoff Precipitation Condensation Groundwater
24. WHAT PARTS OF THE WATER CYCLE ARE CAUSED BY THE FORCE OF
GRAVITY?
25. GRAVITY STAGES DRIVEN BY FORCE OF GRAVITY Solar Radiation
Evaporation Transpiration Infiltration Runoff Precipitation
Condensation Groundwater
26. WHAT IS HAPPENING IN YOUR DIAGRAM? Explain the processes
involved in the water cycle in your diagram. What effect will the
sun have on the water cycle? The shade? What caused the water to
evaporate from the ocean? Where does the water go?