Vocabulary/Quick Facts
The name of the cycle that describes how rocks are formed
The Rock Cycle
In order for igneous rock to turn into sediment, what must happen?
How are metamorphic rocks formed?
Heat and pressure
What are the tiny particles that make up sedimentary rocks called?
Name the three main types of rock.
Sedimentary
Metamorphic
Igneous
Continental crust is mostly made of
Granite
How are igneous rocks formed?
When magma cools
When metamorphic rock melts, what does it turn into?
Magma
How are sedimentary rocks formed?
Sediment is compacted and/or cemented together
In order for rocks to turn back into sediment, what must occur?
Weathering and erosion
The process in which dissolved minerals (broken down minerals) crystallize and glue particles of sediment together is:
Cementation
What is the difference between magma and lava?
Magma is underground and lava is above ground
Describe what a metamorphic rock might look like.
Layers are bent and distorted
What type of particles make up sediment?
sand, shells, dirt, tiny rocks, etc.
Magma (or lava)
Which part of the rock cycle would the water cycle most likely influence?
Weathering and Erosion
What is the difference between intrusive and extrusive?
Intrusive forms inside of the Earth and extrusive forms outside of the Earth.
Where does metamorphic rock usually form?
Deep underground or at plate boundaries
In order for sedimentary rock to turn back into sediment, what must occur?
Weathering and/or erosion
When we talk about cemetation and compaction, what part of the rock cycle are we talking about?
Sediment turning into sedimentary rock
Is the rock cycle something that happens quickly or slowly over time? How do you know this?
Slowly over time; takes many years to change rocks.
How would an igneous rock turn back into magma?
It would have to melt.
In order for metamorphic rock to turn into sedimentary rock, what must occur?
Metamorphic rock must become weathered or eroded then the sediment compacts and cements to turn in to sedimentary rock.
When sedimentary rocks are carried by something like a river or wind and dropped elsewhere, what is this called?
Deposition (DEPOSIT)
Describe how each of the three main types of rock are formed.
Metamorphic: heat and pressure
Sedimentary: Cementation and compaction
Igneous: when magma cools and solidifies