Igneous
What does the word Ignis stand for?
Fire
Metamorphic rocks are formed from what two processes?
Heat and Pressure
What are layers of sedimentary rock called?
Strata
Describe how a metamorphic rock becomes an extrusive igneous rock.
Melting->crystallization above ground
Intrusive igneous rocks are formed inside the Earth or on Earth's surface?
Inside the Earth!
Where does the heat source come from that makes metamorphic rocks?
Earth's core/magma
Sedimentary rocks form in layers. Are the oldest layers at the bottom or the top?
At the bottom.
Describe how a sedimentary rock becomes an intrusive igneous rock.
melt->crystallize underground
Are extrusive igneous rocks made inside the Earth or on Earth's surface?
Earth's surface.
Are metamorphic rocks more or less dense than other types of rock?
More dense.
What is deposition?
The settling of sediment after erosion.
How does an extrusive igneous rock become metamorphic?
Heat and pressure
Intrusive igneous rocks have __________ crystals.
Large
When metamorphic rocks form, the rock has to be hot, but not hot enough to melt. Why?
If it melts, it will crystallize and be igneous, not metamorphic.
What is the difference between weathering and erosion?
Weathering is the breaking apart of rock. Erosion is the movement of sediment.
How does a metamorphic rock become a sedimentary rock?
Weathering, erosion, sediment, deposition, compaction, cementation/lithification
Extrusive igneous rocks have __________ crystals.
Describe the steps a sedimentary rock would take to become metamorphic.
sedimentary->heat and pressure -> metamorphic
Name all the processes involved in the creation of sedimentary rock.
Weathering, erosion, deposition, compaction, and lithification/cementation.
Describe how a metamorphic rock becomes a sedimentary rock and how that sedimentary rock becomes an extrusive igneous rock.
weathering->erosion->sediment->deposition->compaction->lithification/cementation->sedimentary rock -> melting -> crystallization above ground