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name three sedimentary rocks
sandstone
limestone
shale
name three metamorphic rocks
schist
quartzite
marble
name three igneous rocks
granite
basalt
pumice
What two characteristics are the primary way to identify igneous rock?
Texture and composition
What do you know about how an ingenious rock that is coarse grained formed?
Slow cooling of magma. Large, defined crystals.
Obsidian has a glassy texture. Where did it probably form?
Lava cooled quickly at the earth’s surface
An igneous rock that cooled slowly probably ______ the earth
Cooled inside
How do sedimentary rocks form?
They’re compacted and cemented over time (lithification)
Two ways sedimentary rocks are sorted
Conglomerate, limestone
Weathering
The process that breaks metamorphic rock into sediment
Erosion
The process that transports the sediment away, pulls it down
Deposition
Sediment is deposited in an environment of deposition (sandstone, beach, river break)
Compaction
Sediment is compressed together by thee weight of water
Cementation
Sediment is glued together by silica and CaO3
What are the three sedimentary processes?
Weathering, transportation, reworking
How can sedimentary rocks form from sediment?
They go back through the process of weathering and erosion
What two characteristics are used to identify sedimentary rock?
Grain size
Composition
What are the two main mechanisms of metamorphism?
Heat and pressure
What are the two things you need to know about metamorphic rock to classify it?
Foliation
Composition
Parent rock
The original rock that forms the basis for soil/younger rock
What kind of rock is most likely to contain fossils?
Sedimentary
1=?
Melting
2=?
Cooling
3=?
Heat and pressure
4=?
Heat and pressure
5=?
Weathering and lithification
6=?
Weathering and lithification
7=?
Weathering and lithification
8=?
Compaction and cementation
Note 
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