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planet earth, level 1
6th grade science
15
Science
6th Grade
11/06/2007

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Term
Rock Cycle
Definition
The process by which rocks are formed, altered, destroyed, and reformed by geological processes and which is recurrent, returning to a starting point.
Term
Igneous Rock
Definition

Rocks formed form the cooling and solidifying of molten materials. 

 

(Cool Iggy)

Term
Metamorphic Rock
Definition
A type of rock formed by intence heat or pressure.
Term
Sedimentary Rock
Definition

Rocks containing bits and peices of sediments from other rocks.

Term
Erosion
Definition
The gradual wearing away of land surface materials, especially rocks, sediments, and soils, by the action of water, wind, or a glacier.
Term
Deposition
Definition
The natural process of laying down, a deposit of something.
Term
Magma
Definition
Molten material beneath or within the earth's crust, from which igneous rock is formed.
Term

Geology

Definition
The study of earth's entirior.
Term
Uplifting
Definition

rising of something.

Term
Plate Tectonics
Definition
A theory of global tectonics in which the lithosphere is divided into a number of crustal plates.
Term
Plates
Definition
Sections of the earth's crust and upper mantle.
Term
Shearing
Definition
The process by which plates under earth's surface slide past eachother little by little, back and forth.
Term
Tension
Definition
The process in which earth's plates pull away from one another, sometimes breaking apart.
Term
Compression
Definition
The process in which earth's plates colide with one another.
Term
Geologist
Definition
A person who studies earth's entirior.
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