Natural Sources of Natural Sources of WaterWater
What is a “natural” source of water?
Where on Earth do I find this water?
Oceans
• Ocean water is salty.
• Major oceans: Atlantic, Arctic, Indian, Pacific
• In the spring of 2000 a new ocean was recognized:
the Southern Ocean
Earth’s Oceans
Southern
PacificAtlantic
Indian
Arctic
Streams(Rivers)
• A stream is a natural body of water, usually freshwater, flowing toward an ocean, a lake, or another stream.
• Usually larger streams are called rivers, while smaller streams are called creeks or brooks.
Rivers
http://library.thinkquest.org/28022/world/index.world.html
Rivers of Texas
Which river do you live near?
Lakes
• A lake is an inland body of water that is not part of the ocean.
• Small lakes may be called a pond.• Most lakes on Earth are freshwater.• More than 60% of the Earth’s lakes
are in Canada.
Lakes
Crater Lake: Oregon Great Salt Lake:Utah
Lake Michigan: Michigan, Wisconsin, Illinois, Indiana
Caddo Lake: TexasLake Tahoe: Nevada, California
Ponds• A pond is a small lake.• Ponds are sometimes defined as: man-
made or natural bodies of water.
Glaciers
• A glacier is a huge piece of ice that is slowly flowing over land. It is formed from compacted snow.
Mt. Cook: New Zealand
Mt. Hood: Oregon
What natural sources of What natural sources of water do you have in your water do you have in your
area?area?