Three Rocks Video Notes
Three Rocks Video Notes
IGNEOUS
IGNEOUS
*word means fire
*word means _________
*rock is made from cooled magma
*rock is made from cooled ____________
*They are the oldest and youngest rocks.
*They are the ____________and___________ rocks.
*magma
*magma
lava
igneous rock
__________
______________ rock
*varies by the minerals and metals it’s made of
*varies by the ______________and metals it’s made of
*varies by how fast or slowly it cools
*varies by how fast or slowly it _____________
*Intrusive -cools slowly underground, forms
*________________ -cools slowly underground, forms
large crystals
Example - granite
*Extrusive -cools quickly on surface, very
few/small crystal
Example – obsidian, pumice
large crystals
Example - ______________
*________________ -cools quickly on surface, very
few/small crystal
Example - ______________
SEDIMENTARY
SEDIMENTARY
*weathering occurs slowly
*weathering occurs slowly
*erosion moves rock down to fill valleys
*________________ moves rock down to fill valleys
OR is carried to a body of water
*sediments accumulate in layers (upper
presses down on lower)
*layers harden through lithification
OR is carried to a body of water
*sediments accumulate in _______________ (upper
presses down on lower)
*layers harden through lithification
-sediments squeeze together (compaction)
-sediments squeeze together (________________)
-evaporation leaves only minerals behind that
-________________ leaves only minerals behind that
act like glue to pack grains (cementation)
act like glue to pack grains (________________)
*sediment examples: sand, mud, gravel
*sediment examples: __________________________
*Sedimentary rocks: sandstone, shale, conglomerate
*Sedimentary rocks: _________________________
METAMORPHIC
METAMORPHIC
*word means changes
*word means ______________
*these rocks can start as sedimentary,
*these rocks can start as _____________________,
igneous, or any metamorphic rocks
* Heat and pressure change rock
into metamorphic
*Exs
limestone
marble
granite
gneiss
*these rocks do not melt, but heats enough to be
squeezed
**Some rocks get uplifted to surface & weathered
back to sediment.
**Some rocks get pushed underground & melt,
harden, or erupt as lava
igneous, or _______________________ rocks
* _____________and________________ change rock
into metamorphic
*Exs
limestone
________________
granite
________________
*these rocks do not melt, but heats enough to be
_______________
**Some rocks get uplifted to surface & ____________
back to sediment.
**Some rocks get pushed underground & ___________,
harden, or erupt as ___________