Igenous
Metamorphic
Sedimentary
Identification
Other
100
What is a distinguishing characteristic describing igenous rocks?
Crystal grains
100
define non-foliated
ramdom crystal patterns, no stripes or bands
100
Where are most sedimentary rocks found
In water
100
I am an intrusive igenous rock thats very commonly found
Granite
100
What top of rocks commonly have layers
Sedimentary
200
What is the diffrence between magma and lava
Magma is under ground and cools slowly forming large crystals and lava is above ground cooling slowly forming small or no crystals
200
Where are metamorphic rocks formed
Deep in the crust
200
how do compacting and sementing effect the the sedimentary rocks?
It holds sediments together
200
I am fossil limestone. which rock group are my
Sedimentary. Heat (found in igneous and metamorphic rocks) destroys fossils
200
When igenous rocks with crystals are exposed to extreme heat and pressue the crystals are squeezed into bands or layers called ________
foiation
300
Igenous rocks are the first type of rock on earth True or False
True
300
how is a metamorphic rock formed?
By extreme heat and pressure
300
List one distinguishing characteristic describing Sedimentary rocks
Sediments, or sediment size
300
I am an igenous rock. I have a glassy feel and apearence. Another name for me is volcanic glass. What am I?
Odsidian
300
Define rock
A mixture of one or more minerals
400
How are Igenous rocks formed?
The cooling of lava or magma
400
LIst one distinguishing characteristic for metamorphic rocks
folliated or non-foliated
400
Where are the youngest layers found vs. the oldest
The newest are at the top and the oldest are at the bottom
400
I am quartzite. what type of rock are my?
Metamorphic
400
I am formed by sediments compacted together.
Sedimentary
500
Why do intrusive rocks have larger crystals then extrusive rocks?
intrusive rocks cool slower
500
Is Gneiss Foliated or Non-foliated
Foliated
500
List some examples of sediments
organic material, sea shells, rocks, dirt, and mud
500
Define foliated
A way of describing metamorphic rocks that have layers stripes or bands
500
What group is very common in harford county
Metamorphic
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