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formed from cooling magma/lava
igneous
formed from compaction and cementation of sediment
sedimentary
formed when heat/pressure alter rock composition and structure
metamorphic
fine grained igneous rocks that cooled quickly
extrusive
igneous rocks that have large crystals because they cooled slowly
intrusive
pumice
igneous
granite
igneous
obsidian is a/an ______ igneous rock
extrusive
igneous rocks with high levels of silica are called
felsic
mafic rocks tend to be what color
darker colors
sedimentary rock formed from pieces of broken rock
clastic
formed when dissolved minerals crystallize (precipitate) directly from water
chemical sedimentary rock
limestone made from the shells of dead organisms is ________ sedimentary rock
biochemical
What type of rock is sandstone?
sedimentary
What type of rock is limestone?
sedimentary
extreme temperatures and pressures and chemical changes affect the structure and composition of rock
metamorphism
