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Unit Test
Hamilton Middle School-6th grade
18
Science
6th Grade
11/08/2007

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Cards

Term
Metamorphic Rock
Definition
A type of rock that forms from an existing rock that is changed by heat and pressure, or chemical reactions.
Term
Igneous Rock
Definition
a rock formed by magma or lava
Term
Sedimentary Rock
Definition
a rock formed by the accumulation and consolidation of sediment
Term
What are the three main types of rocks??
Definition
Igneous, metamorphic, and sedimentary
Term
Uplifting
Definition
a structurally high area in Earth's crust
Term
rock cycle
Definition
a series of processes on the Earth's surface and inside the Earth
Term
geoglogy
Definition
the study of the Earth
Term
Plates
Definition
large movable segments of the lithosphere
Term
magma
Definition
molten rock material that occurs below the Earth's surface
Term
plate techtonics
Definition
the dynamics of plate movement
Term
pangaea
Definition
a supercontinent that included all the landmasses of the Earth before the Trassic peroid
Term
shearing
Definition
stress that pushes a mass of rock in oppisite directions
Term
tension
Definition
stress the streches rock so that it becomes thinner in the middle
Term
compression
Definition
stress that sueezes rock until it folds or breakes
Term
permeability
Definition
a type of mass that allows water to pass through eaisly
Term
geologist
Definition
person who studies the earth
Term
What was Alfred Wegners hypothsis
Definition
that all the continents were once one big supercontinent
Term
four main features that shape the earth
Definition
uplifting, erosion, earthquakes, and volcanos
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