Basic rock
Igneous
Metamorphic
Sedimentary
Superpostion
100
Complete the sentence... All rocks _______ change over time.
slowly
100
How is a igneous rock formed?
Hardened and cooled magma.
100
How is it formed?
by changes in temperature and pressure OR presence of hot watery fluids.
100
Sediments are what?
loose material of rock fragments, minerals, and shell that have been broken up by erosion.
100
What is the law of superposition?
Younger rocks lie above older rocks if the layers have not been disturbed.
200
What are the 3 types of rocks?
Igneous, metamorphic, and sedimentary
200
Where can you find a igneous rock?
Toward the surface.
200
True or faulse... It can not be formed from a sedimentary rock.
faulse
200
Often form is what?
Layers
200
What is a fossil that is fond in the rock layers of only one time period and is used to determine other events or objects?
Index fossil
300
Name the 4 ways a rock can change.
Pressure, melting, weathering/erosion, and compaction/ cemention.
300
What are mineral grains?
Cooled magma, where atoms have arranged themselves into crystal patterns.
300
What are the 2 ways a metamorphic rock can be categorized?
Foliated and nonfoliated.
300
They are made from weathered/eroded igneous, metamorphic, or sedimentary rocks?
All 3
300
True or faulse... Any layer that runs through another is younger than the layers it touches.
true
400
Are rocks made of 1 mineral or more?
More
400
What are 2 ways and igneous rock is categorized?
Intrusive and Extrusive
400
Is gneiss an example of a foliated rock?
Yes
400
How is it formed?
By rock pieces that are pressed and cemented together.
400
What is relative dating?
Any method of determining whether and event or object is older or younger than other events or objects.
500
What is a rock?
a mixture of minerals, rock fragments, volcanic glass, organic matter, and other natural minerals.
500
What's the difference between intrusive and extrusive?
Intrusive= coarse mineral grains Extrusive= fine mineral grains
500
Complete the sentence... Nonfoliated rocks do not form _______.
Layers
500
Older rocks are at the ______, newer rocks are at the ____.
older, newer
500
The remains of an organism that lived long ago, most commonly are preserved in __________ rock.
Sedimentary
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