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10 Cards in this Set

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Igneous rock

Type of rock formed from from magma or lave
Metamorphic rock
Type of rock created by heat, pressure, or hot fluids
Sedimentary rock
Type of rock created by sediments compacted and cemented together
Intrusive
Igneous rock formed underground
Extrusive
Igneous rock formed on the earth's surface
Compaction and cementation
The process by which sediments become sedimentary rock
Weathering and erosion
The process by which rock becomes sediment
Rock Cycle
The constant, slow change of rocks from one type to another
obsidian and pumice
Examples of an extrusive igneous rocks
Obsidian
Volcanic glass. An extrusive igneous rock that has a glassy appearance from cooling quickly