Edith Nuez

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Edith Nuñez
EDUC 6584
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The Water Cycle or Hydrologic Cycle is an
unending circulation of Earths limited amount of
water above, on, and below the surface of the
Earth.
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This enormous system is driven by energy from the
Sun.
Oceans, Rivers, Streams, and Lakes
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Water may be stored briefly in the ground in
oceans, lakes, streams, and rivers, ice caps and
glaciers.
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The water cycle consists of

• Evaporation
• Transpiration
• Condensation
• Transport
• Precipitation
• Infiltration
• Ground Water
• Runoff
• Surface Runoff
• Subsurface Runoff
• Storage or Collection

Transport
Runoff
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• Evaporation
• Occurs when the Sun heats up water and turns it
  into vapor. The water vapor goes into the air.

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• Transpiration
• Happens when plants give off water vapor
  through tiny pores in their leaves. This water
  vapor goes into the atmosphere.

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• Condensation
• The water vapor in the air gets cold and
  changes back to water droplets forming clouds.

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• Transport
• Is when the water vapor is carried by the
  wind over land. Some of the transport is
  visible as clouds.

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• Precipitation
• Occurs when the clouds cant hold more
  moisture. The clouds get heavy and water falls
  back to the earth in the form of rain, snow, etc.

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• Storage or Collection
• When water falls back to Earth as
  precipitation, it may fall back in oceans,
  lakes or rivers or it may end up on land.

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• The precipitation that falls into the ocean
• has completed its cycle and is ready to begin
  another

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• But, what happens to precipitation once it has
  fallen on land?

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• Infiltration
• Happens when water soaks into the ground,
  slowly moving downward through cracks and
  spaces between soil and rocks.

Infiltration
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• Groundwater
• Is simple water under the ground. It is the
  largest reservoir of fresh water. It moves
  slowly underground to streams and rivers.

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• Runoff
• Water that flows over the land (surface) or
  underground (subsurface) into lakes, streams,
  drains, sewers and eventually to the oceans
  rather than infiltrating into the ground.

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Could you mention one of the steps that takes
place in the Water Cycle?
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How does water get into the ocean?
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Water Fun Facts

• About two thirds of your body is made up of
  water.
• Three quarters of your brain consists of water.

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• Water is the only thing in nature that can be a
  gas, liquid, or solid.
• There is water in the air you are breathing. You
  cant see it, because it is in the form of an
  invisible gas called water vapor.

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• Clouds are formed of water droplets and/or ice
  crystals
• held together.
• Rain clouds have lots of ice crystals and big,
  heavy raindrops. These can block out the Sun.

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• In twenty minutes, one thunderstorm can send down
  over 125 millions of gallons of water!

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• There is almost exactly the same amount of water
  on Earth now as there was when the dinosaurs
  lived.

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• It takes two gallons of water to brush your teeth.

• Two to seven gallons to flush a toilet.

• Twenty five to fifty gallons to take a shower.

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Do you remember the different states of matter
in which water can exist?
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The Earths water supply is made up of
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Water on Earth has passed through the Water
Cycle countless times