The Earth’s Water Chapter 2 ~ Section 3. Oceans, lakes, rivers, and other bodies of water make up...
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Transcript of The Earth’s Water Chapter 2 ~ Section 3. Oceans, lakes, rivers, and other bodies of water make up...
![Page 1: The Earth’s Water Chapter 2 ~ Section 3. Oceans, lakes, rivers, and other bodies of water make up the earth’s hydrosphere Hydrosphere.](https://reader035.fdocuments.in/reader035/viewer/2022062805/5697c02a1a28abf838cd812b/html5/thumbnails/1.jpg)
The Earth’s The Earth’s WaterWater
Chapter 2 ~ Section 3Chapter 2 ~ Section 3
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Oceans, lakes, rivers, and Oceans, lakes, rivers, and other bodies of water make up other bodies of water make up the earth’s the earth’s hydrospherehydrosphere
HydrosphereHydrosphere
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HydrosphereHydrosphere
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The total amount of water on The total amount of water on the earth does not change, but the earth does not change, but the water is constantly movingthe water is constantly moving
The The Water CycleWater Cycle shows the shows the regular movement of waterregular movement of water
http://www.classzone.com/books/earth_science/terc/content/visualizhttp://www.classzone.com/books/earth_science/terc/content/visualizations/es0105/es0105page01.cfm?chapter_no=visualizationations/es0105/es0105page01.cfm?chapter_no=visualization
The Water CycleThe Water Cycle
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The Water CycleThe Water Cycle The sun The sun evaporatesevaporates the water from the water from
oceans, lakes, and streamsoceans, lakes, and streams Changes it from liquid to vapor, or gasChanges it from liquid to vapor, or gas Warm air carries more water vapor Warm air carries more water vapor
than cold airthan cold air
Excess vapor changes into liquid water Excess vapor changes into liquid water - - condensationcondensation
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The Water CycleThe Water Cycle
Drops of water come together Drops of water come together to create cloudsto create clouds
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When there is too much water When there is too much water in the clouds, it falls to the in the clouds, it falls to the earth as earth as precipitationprecipitation – rain, – rain, snow, or sleet depending on snow, or sleet depending on temperaturetemperature
The Water CycleThe Water Cycle
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Bodies of WaterBodies of Water The earth is 70% waterThe earth is 70% water
almost all of it is salt wateralmost all of it is salt water
Four oceans: Four oceans: Pacific, Atlantic, Indian, and ArcticPacific, Atlantic, Indian, and Arctic
The Pacific Ocean is larger than all the The Pacific Ocean is larger than all the earth’s land combinedearth’s land combined
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Seas, gulfs, and bays – smaller than Seas, gulfs, and bays – smaller than oceans & partially enclosed by landoceans & partially enclosed by land
97% of the earth’s water is salt water97% of the earth’s water is salt water
To make this water drinkable, it goes To make this water drinkable, it goes through the process of through the process of desalinationdesalination – removing the salt– removing the saltVery expensiveVery expensive
Bodies of WaterBodies of Water
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Fresh waterFresh water3% of the earth’s water supply is 3% of the earth’s water supply is
fresh waterfresh waterMost of this is in glaciers and ice Most of this is in glaciers and ice
capscapsThe rest is found beneath the The rest is found beneath the
earth’s surface, in earth’s surface, in aquifersaquifers,, or in or in lakes & riverslakes & rivers
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