Igneous Rocks Sedimentary Rocks Metamorphic Rocks Rock Processes Rock Samples
This word means “fire”
What is Igneous?
The size of mineral crystal made during a long, slow cooling period
What is large?
Usually found just under the surface, this is the most popular rock on planet Earth.
What is granite?
Name given to the type of igneous rock that forms and hardens deep inside the earth.
What is intrusive?
Word given to igneous rock that forms and hardens on the exterior of the Earth.
What is extrusive?
Large size sediment grains.
What gravel ?
The dropping off of sediment grains, usually in the bottom of a lake or ocean.
What is deposition?
The name given to sedimentary rock layers.
What is strata?
Type of sedimentary rock which is formed from dead plants and animals.
What is organic?
Type of sedimentary rock made of “glued” together fragments of rock.
What is clastic?
Location where metamorphic rock forms.
What is underground?
The two major processes that create metamorphic rock.
What are heat and pressure?
Name given to metamorphic rocks that have parallel bands or striping due to uneven pressure.
What is foliated?
Name given to metamorphic rocks that have no parallel banding or “flatnesses.”
What is non-foliated?
Metamorphism through the pressure of crust collisions or the pressure of heavy overlying rock.
What is regional metamorphism?
A small piece of rock that has been broken off.
What is a sediment?
The moving of sediments from one place to another.
What is erosion?
The two major processes that create igneous rock.
What is melting and cooling?
The “gluing” together of rock fragments in order to form a clastic sedimentary rock.
What is cementation?
Metamorphism through the heating of nearby magma.
What is contact metamorphism?
Also known as black glass or volcanic glass, this igneous rock was often used for arrowheads.
What is obsidian?
This igneous rock is filled with trapped gases and is thus able to float in water.
What is pumice?
This sedimentary rock has a medium grained texture, is often layered, and is used as a stone for building because it is easy to cut and often pretty.
What is sandstone?
This metamorphic rock used to be the sedimentary rock limestone. It is considered to be very beautiful and is often used for making statues.
What is marble?
This is the name of a clastic sedimentary rock that is made from large sediments.
What is conglomerate?