The process in which sediments come to rest or drop.
What is deposition.
100
What are the two groups that igneous rocks can be broken into.
Intrusive & extrusive
100
This type of sedimentary rock is formed by the remains of plant or animals cemented and compressed together.
What is organic sedimentary rock.
100
How do metamorphic rocks form?
What is heat and pressure.
100
The rock's _______________ is what minerals and other substances make up that rock.
composition.
200
What is the vocabulary work:
Wind, water, ice, heat break down sediment.
weathering.
200
__________ grained igneous rocks take longer to cool. They are found deeper in the Earth's crust. This rocks have larger ______________.
Coarse
crystals
200
What are strata?
Strata are layers of sedimentary rock.
200
Some metamorphic rocks are formed by getting in contact with nearby magma. These rocks don't melt back into magma instead they just get heated and change into metamorphic rock. This is called ___________ metamorphism.
contact
200
The _____________ of rock describes the size and shape of the rocks grains or crystals.
What is texture.
300
A movement within the Earth that causes rocks inside the Earth to be moved to the Earth’s surface is called...
uplift.
300
How do you know how quickly obsidian formed?
Cooled quickly. It doesn't have crystals.
300
This kind of sedimentary rock is formed when mud, silt, sediment or clay is cemented and compressed by minerals.
What is clastic sedimentary rock.
300
_______________ metamorphism is when large pieces of the Earth's crust collide with each other.
regional
300
How can an igneous rock change into a sedimentary rock?
The igneous rock needs to get weather, eroded then deposited. After a long time it gets cemented and compacted into sedimentary rock.
400
The process by which water, wind, ice or gravity carry soil or sediment is called...
erosion
400
What kind of igneous rock is the outside of the volcano?
Extrusive
400
This type of sedimentary rock is formed when minerals are dissolved into water forming sedimentary rocks.
What is chemical sedimentary rock.
400
Metamorphic rocks can be categorized by texture: rocks that have bands are called __________ rock and rocks that do not have bands are called ____________ rocks.
foliated, nonfoliated
400
How can an igneous rock change to a metamorphic rock?
heat and pressure
500
Why is the rock cycle not a perfect circle?
The rock cycle isn't a perfect circle because any rock can turn into any other rock. For example a metamorphic rock can change into a different metamorphic rock, an igneous rock or a sedimentary rock.
500
Why does basalt have tiny crystals, but obsidian has none?
Basalt cooled fast by the air, but obsidian cooled even faster by water.
500
All sedimentary rocks are formed in low laying areas like at the bottom of ___________, ___________, ____________.
rivers, lakes, oceans
500
As metamorphic rocks are exposed to more and more heat and pressure they turn to different metamorphic rocks because their __________ change.
minerals.
500
How can a sedimentary rock change into an igneous rock.
It needs to get melted back into magma then cooled.