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Earth Science Cont.

Earth Science Mid-Term Review '09

QuestionAnswer
Weathering when rocks are broken down into smaller pieces and can be chemical, physical or biological.
Erosion when sediments or rocks are moved from one place to another naturally.
Porosity the amount of open space in soil or rock.
Permeability the ability for a liquid to penetrate soil or rock.
Crust thinnest layer, made of mostly Si, O.
Mantle thickest layer, made of slightly heavier elements.
Outer Core liquid iron and nickel.
Inner Core solid iron and nickel.
Created by: Sarah42
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