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Types of Rocks
Igneous Rocks Metamorphic
Ri 5
Sedimentary
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Sedimentary Rocks
How They are Made
= Wind and water break down the earth
™ Bits of earth settle in lakes and rivers
™ Layers are formed and build up
™ Pressure and time turn the layers to
rock
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Types of Sedimentary
ی
Gypsum Conglomerate
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Metamorphic Rocks
What are They?
= Rocks that have changed
= They were once igneous or
sedimentary
= Pressure and heat changed the
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Types of Metamorphic
Rocks
Schist Gneiss
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Igneous Rocks
What are They?
"Fire Rocks —
= Formed underground by trapped,
cooled magma
= Formed above ground when
volcanoes erupt and magma cools
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Types of Igneous Rocks
Granite Scoria
Pumice Obsidian
&
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2 1 ۴
ANTIEDUST”
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