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Earth Systems Science Core
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Science Language Students Should Know And Use

Carbon cycle
The processes of photosynthesis, decomposition and respiration by which the element carbon circulates between living and non-living parts of the environment.
The weather conditions that prevail in a region.
An organism such as a bacteria or fungus that breaks down dead plant and animal material, returning the components to the ecosystem.
Using a natural resource faster than it can be replenished.
Fossil fuel
A product formed from the decay of plant or animal materials from a previous geologic time. Examples include petroleum and coal.
Earth's outer layer, made of the crust and outer layer of the mantle.
Anything that takes up space and has mass.
Nitrogen cycle
The series of events where atmospheric nitrogen is converted into compounds used by organisms and released back to the atmosphere by decomposition.
Ozone layer
An upper region of the atmosphere which absorbs much of the ultraviolet radiation from the sun.
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Teachers should view the Teacher Site Map to relate Sci-ber text and the USOE Earth Systems Science core.


Updated October 24, 2008 by: Glen Westbroek

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