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Earth
vacabulary
19
Science
3rd Grade
03/17/2008

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Cards

Term
core
Definition
the center part of the earth.
Term
crust
Definition
the top layer of the earth.
Term
delta
Definition
land that is formed by sediments where a river empties into a lake or ocean.
Term
dune
Definition
a pile of sand formed by the wind.
Term
Earthquake
Definition
the shaking of the earth’s crust.
Term
erosion
Definition
the moving of weathered rocks and soil by wind, water, or ice
Term
fault
Definition
a crack in the earth’s crust along which rocks move.
Term
glacier
Definition
 a large mass of ice that moves.
Term
igneous rocks
Definition
rocks that come from fire or magma.
Term
landform
Definition
a shape of the land such as mountain, plain, plateau.
Term
mantle
Definition
the middle layer of the earth.
Term
metamorphic rocks
Definition
 rocks that are formed when igneous or sedimentary rocks are changed by heat and pressure under the earth.
Term
mineral
Definition
nonliving solid matter from the earth.
Term
plate
Definition
a large section of rock that makes up part of the earth’s crust.
Term
sediment
Definition
tiny bits of rocks, shells, and other materials.
Term
sedimentary rocks
Definition
rocks that are made from sediments that have been pressed together.
Term
volcano
Definition
a mountain that gives off gases and lava.
Term
weathering
Definition
 the breaking and wearing away of rocks.
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