rock cycle
How many major rock types are in the rock cycle?
3
Igneous rocks are classified by
size of crystals
A rock that was once a different rock with a different mineral composition and/or texture is a(n)
metamorphic rock
Clastic sedimentary rocks are classified by
size of sediment
This is caused by wind, water, waves or biological means
weathering
Regional metamorphism can be the result of
what is pressure or collisions on Earth's crust
Two rocks have the same minerals, but of very different sizes. What must be true about the the rate of cooling and size of the mineral crystals
The slower the cooling, the larger the crystal.
through metamorphism sandstone is transformed into into the rock ______
quartzite
these are the preserved remains of organisms that are found in sedimentary rocks
fossils
Sediments are laid down horizontally during this process
deposition
A rock that is exposed to so much heat and pressure that it melts will cool to become a(n) ____________ rock.
what is igneous
The igneous rock that makes up the ocean floor is
basalt
What is the missing metamorphic rock:
Shale - Slate - phyllite - schist - _________
gneiss
rock salt and gypsum are these types of sedimentary rocks
chemical
a grain of quartz that was weathered from a piece of granite is ____________
sediment
two main subcategories of sedimentary rocks
clastic and chemical
Which term describes igneous rocks that crystallize above the crust
extrusive
____________ metamorphism changes a rock that is close to magma's extreme heat.
contact
sedimentary rocks that form when minerals cement the particles together are called
clastic
This is the movement of the weathered sediments
erosion
If limestone is buried under the ground and placed under pressure until it becomes extremely hot, it changes to the metamorphic rock _______________
what is marble
Many mountain ranges including the Sierra Nevada's are made of the intrusive igneous rock __________
granite
Banded layers found in metamorphic rock are known as ____________.
foliation
sedimentary rocks are easily identified because they are ________
layered
When minerals infiltrate into loose sediment and cement the particles into a rock
lithification