Download The Rock Cycle

The Rock Cycle
“Da Rock Cycle”
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http://www.youtube.com/watch?v=w_FFBFcN
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Three Types of Rocks
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Igneous
Metamorphic
Sedimentary
Igneous Rocks
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Igneous rocks form when molten (Magma) rock
cools and becomes solid.
Igneous rocks are divided into two groups, based on
where the rock forms.
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Intrusive Igneous Rocks: Igneous rocks that form below
the Earth’s surface. They form when magma enters an
underground chamber, cools very slowly, and forms rocks
full of large crystals.
Extrusive Igneous Rocks: Igneous rocks that form above
the Earth’s surface. These rocks, also called volcanic
rocks, form when lava cools quickly at or above the Earth’s
surface.
Sedimentary Rock
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Formed from igneous
rocks that are eroded
by wind, water or ice
These sediments are
carried into seas, after
millions of years the
weight of the sea and
the sediments
compressed into
sedimentary rock
Metamorphic Rock
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Metamorphic Rocks are
formed when Sedimentary
and Igneous rocks are
exposed to heat and
pressure
Metamorphism occurs when
magma or liquids are forced
into cracks of existing
sedimentary and igneous
rocks. The surrounding
rocks are changed into
metamorphic rocks