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Earth Systems
Earth Systems
10
Science
8th Grade
12/20/2011

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Term
geosphere
Definition
rocky part of earth
Term
hydrosphere
Definition
All the water on earth
Term
atmosphere
Definition
the envelope of gas that surround earth
Term
biosphere
Definition
all living things on earth.
Term
open system
Definition
a system that lets matter in or out.
Term
closed system
Definition
when matter goes in it stays
Term
one source of energy the earth uses is ?
Definition
the sun.
Term
Earth can be thought of as consisting four major spheres.
Definition
hydrosphere, atmosphere, geosphere, and biosphere.
Term
the three main parts of the geosphere are?
Definition
the core, the mantle, and the crust.
Term
where does the biosphere extend from?
Definition
the ocean floor upward for several kilometers into the atmosphere.
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