Rocks and the rock cycle
All rock is a natural, solid mixture of
minerals or grains
What is true of an igneous rock that forms deep beneath Earth’s surface?
It will have large crystals.
Name an example of biochemical sedimentary rock
coal, fossils, fossiliferous limestone, chert
_____________ metamorphism is the formation or metamorphic rock over very large areas.
Regional
Rocks are classified by their _______ and __________.
Texture and composition
In order for a metamorphic or igneous rock to be exposed to weathering the rock must ___________ first.
uplift
Name an example of an intrusive igneous rock
gabbro, granite, rhyolite...
Clastic sedimentary rocks are classified by the _____________ of their clasts.
Shape and size
Metamorphic rocks form when pre-existing rock come in contact with great _____________ and ______________.
Temperature, Pressure
The two types of metamorphism are ____________ and ______________. What is the difference.
Regional and contact.
answers may vary
Weathering, erosion, deposition which leads to compaction and cementation are the steps that lead to the formation of ______________ rocks.
Sedimentary
Name an example of an extrusive igneous rocks.
pumice, obsidian, ...
____________ forces fluids out of sediment in the sedimentary process.
Compaction
Contact metamorphism occurs when pre-existing rock comes into contact with _______________.
magma
Why are fossils often found in sedimentary rocks?
The temperature and pressure are not so great that they will damage the fossils
The minerals or bits of other materials that form a rock are called ____________.
grains
_______________ igneous rocks form when material from a volcano cools and crystallizes on Earth's surface.
Extrusive
Sediments bind together during the _____________ part of the sedimentary process.
cementation
The layers in foliated metamorphic rock are a result of ___________ on a an existing rock.
pressure
What is the name of a scientist that studies rock?
True or Flase
The rock cycle is a series of processes that change a preexisting rock to a new rock while following a defined path.
False
____________ and __________ are the two main types of igneous rock.
Intrusive, extrusive
______________ rocks are similar to sedimentary rocks because they may have layers.
Foliated metamorphic
What is the major difference between igneous and metamorphic rocks?
igneous rocks melt
Explain why a rock that I made with sediment and a trash compactor would NOT be a rock.
It did not occur naturally