9 terms

Rocks

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Terms in this set (...)

rock
a naturally occurring solid combination of minerals
sedimentary rock
rock formed from weathered and eroded rocks being compacted and cemented
metamorphic rock
rock formed from extreme heat and/or pressure
igneous rock
is formed through the cooling and solidification of magma or lava
rock cycle
the diagram that explains how rocks can change from one type into another
characteristics of rock (how to ID)
color, texture, density, layers, grain
fossil
the remains of a living organism trapped and preserved in sedimentary rock
mass extinction
an event during which most of the species on the planet cease to exist (die)
law of superposition
older rock is lower than younger rock (care to be sure plate tectonics has not tipped the rock is key)

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