Definitions
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
True or False?
100
The process in which wind, ice and snow break down rock
weathering
100
How are igneous rocks formed?
When magma cools and solidifies
100
How are sedimentary rocks formed?
When sediments/rock fragments clump together
100
How are metamorphic rocks formed?
By heat and pressure
100
foliated metamorphic rocks do not have bands. true or false?
false
200
The process by which rock changes from one type to another
the rock cycle
200
Where are igneous rocks formed?
inside and outside the Earth's surface
200
Where are sedimentary rocks formed?
outside the Earth's surface
200
Metamorphic rocks do not need heat or pressure to be formed. True or False?
False
200
Intrusive igneous rocks grow crystals. True or False?
True
300
The process in which sediment moved by erosion is dropped and comes to rest
Deposition
300
Based on WHERE they are formed, igneous rocks can be classified in two groups. What are they?
intrusive, extrusive
300
What does "Strata" mean?
layers of rock
300
Where are metamorphic rocks formed?
inside the Earth's surface
300
Felsic rocks are light colored rocks
True
400
Type of metamorphic rock that is formed by the heat from nearby magma
Contact metamorphic rock
400
Based on their COLOR, igneous rocks can be classified in two groups. What are they?
felsic, mafic
400
What are clastic sedimentary rocks made out of?
Fragments of rock and sediment
400
Based on TEXTURE, metamorphic rocks can be classified in two groups. What are they?
foliated and nonfoliated
400
Organic sedimentary rocks are formed by fragments of rock. true or false?
false
500
Type of metamorphic rock that is formed by pressure
Regional metamorphic rock
500
Why do intrusive igneous rocks have crystals and extrusive igneous rocks do not?
Because intrusive rocks cool at a slower rate so they have time to grow the crystals
500
Explain what the difference between organic, clastic and chemical sedimentary rocks is
organic- has fossils, plants etc clastic- has pieces of rock and sediment chemical- formed from solutions of dissolved minerals
500
Based on how they are formed, metamorphic rocks can be classified in two groups. What are they?
contact and regional
500
Regional metamorphic rocks are formed by pressure
False
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