Review
Foilation
Changes Over Areas
Heat and Pressure
Changes During Metamorphism
100
The sedimentary rock coal is made up of these.
What are ancient plants?
100

This is an arrangement of minerals in flat or wavy bands.

What is foliation?

100
The type of metamorphic changes that occur depends on the type of parent rock and the conditions of these.
What are heat and pressure?
100

The process by which an existing rock is changed by heat when it is near magma.

What is contact metamorphism?

100
Heat and pressure can break the bonds between atoms. Then the atoms will join back together differently as new bonds form. This is process is called:
What is recrystallization?
200
An igneous rock that forms on the surface.
What is an extrusive igneous rock?
200
This is a common type of rock that does not display foilation.
What is marble?
200
This can be caused by a rock being in contact with magma or lava.
What is recrystallization?
200
The original rock that becomes metamorphic rock through heat and pressure.
What is the parent rock?
200
Recrystallization can cause this to happen in minerals.
What is growth?
300
Most igneous rocks are made of this type of mineral.
What are silicates?
300
At low levels of metamorphism, the bands caused by foilation are this.
What is extremely thin?
300
Most metamorphic changes occur over this size of area.
What is large?
300
Deep beneath the crust, a metamorphic rock called gneiss can be found. It's parent rock is:
What is schist?
300
Sometimes during recrytallization, this can happen as atoms combine in different ways.
What is formation of new minerals?
400
Sedimentary rock makes up this percent of the surface of the crust.
What is 75%?
400
One reason a rock may not display foilation is that it is only made up of one type of this.
What is mineral?
400

This process can affect an area hundreds of kilometers wide and tens of kilometers deep.

What is regional metamorphism?

400
During metamorphism, the rocks' minerals may do this.
What is flattening?
400
Many metamorphic rocks people use were once this type of rock before they underwent metamorphism
What is sedimentary?
500
This igneous rock makes up most of the ocean floor.
What is basalt?
500
At high levels of temperature and pressure, the minerals separate into these.
What are bands of light and dark?
500
Metamorphic changes over small areas are mainly due to this.
What is high pressure?
500
This is the parent rock of marble.
What is limestone?
500
Rocks do not melt when they undergo metamorphism because if they did, the result would be this type of rock.
What is igneous?
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