Why Study Water?

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Why Study Water?
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THE WATER CYCLE

• Sunshine
• The sun transfers its energy through radiation to
  rivers, lakes, streams, wetlands and oceans. This
  ENERGY turns the water into vapor or steam
  (EVAVPORATION), and then into a CLOUD
  (condensation).
• THE SUN DRIVES THE WATER CYCLE.

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The Water Cycle Review
Phase Change due to RADIANT ENERGY
Driven by Radiant Energy from the Sun.
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THE WATER CYCLE

• PRECIPITATION
• When clouds get full of water, PRECIPITATION
  starts to fall. It falls onto the land and runs
  into streams and rivers. The water in the streams
  and rivers runs into lakes and finally into the
  ocean. Some soaks into the ground and stays there
  until plants drink it or until it goes deep
  enough into the ground that it is called
  "groundwater" and goes to people's wells.

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Water Cycle GROUND WATER
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Groundwater water that soaks into the ground
from rain or melted snow.
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Ground Water Zones
Water Table Boundary at the top of the
groundwater zone.
Can changeMore H2O, higherLess H2O, lower
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Ground Water
Aquifer Layer of permeable rock or sediment.
WELLS
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AQUIFER AND GROUND WATER
WELL
Layer of permeable rock or sediment.
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THE WATER CYCLE

• Mountains and Ice
• Some of the precipitation that falls onto
  mountains stays there a long time because it is
  so cold most of the time at the top of mountains.
  It turns into ice and sometimes becomes glaciers.
  Snow and ice on the top of mountains can stay
  there sometimes for hundreds of years before it
  finally melts and runs into the streams and
  rivers.

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THE WATER CYCLE

•  Rivers and Streams  
• Carry the water that comes from rain and melted
  snow into the ocean. They sometimes can carry
  this water a long way. The Connecticut River
  carries rain and melted snow from Canada all the
  way to Long Island Sound. All of the land that
  drains into the river is called its WATERSHED.

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Major Watersheds in Connecticut
HKHS
South Central Coastal
Parker Hill Rd
Long Island Sound
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WATERSHEDS
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THE WATER CYCLE

•  Oceans    
• Oceans are like really big lakes. Rivers and
  streams carry all of the water AND EVERYTHING
  ELSE that comes from precipitation and the land
  into the oceans. When water gets into the oceans,
  it mixes and becomes salty.
• Most of the water on the earth is in the oceans.

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THE WATER CYCLE
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DID YOU KNOW?

• 98 of water on earth is in the oceans
• Only 2 of the water on earth is freshwater
• About 2.4 of the water on earth is permanently
  frozen in glaciers and at polar ice caps
• About ½ of 1 of the water on earth is
  groundwater
• Only about 1/100 of 1 of the water on earth is
  in the rivers and lakes
• It takes 39,090 gallons of water to make a new
  car, including tires
• Over 17,000,000 houses use private wells for
  their drinking water supply
• A person can live about a month without food, but
  can live only about 1 week without water