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bwilson13
Rocks
27
Science
7th Grade
01/13/2014

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Term
rock cycles
Definition
process that changes/creates rocks.
Term
erosion
Definition
movement of sediment by wind or water.
Term
weathering
Definition
rock broken down by water, wind, and ice.
Term
igneous
Definition
cooled lava + magma.
Term
metamorphic
Definition
formed by heat + pressure
Term
sedimentary
Definition
compacted/cemented sediment
Term
magma
Definition
molten rock below Earth's surface
Term
lava
Definition
molten rock above " "
Term
Detrital
Definition
sediments compacted/cemented together
Term
Conglomerate
Definition
a detrital rock that contains large pebbles
Term
Sandstone
Definition
a detrital rock that contains sand
Term
Shale
Definition
a detrital rock that contains clay/mud
Term
Chemical
Definition
sed. rock made by dissolved minerals
Term
Limestone
Definition
sed. rock made by calcium carbonate (seashells)
Term
Halite
Definition
(rock salt) sed. rock made up of salt
Term
Organic
Definition
formed from dead plants + animals
Term
coal
Definition
sed. rock that is dead plants
Term
Metamorphic Rock
Definition
formed by pressure and heat.
Term
Heat
Definition
underlying magma
Term
Pressure
Definition
from overlying layers
Term
Foliated
Definition
meta. rock- has bands or layers
Term
Nonfoliated
Definition
meta. rock- on bands or layers
Term
Slate
Definition
formed from compressed shale
- roof, walkways
Term
Gneiss
Definition
formed from compressed granite
Term
Schist
Definition
formed from compressed mica
Term
Quartzite
Definition
formed from compressed sandstone
Term
Marble
Definition
formed from compressed limestone
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