Layers of the Earth
Plate Boundaries
Vocabulary
Rock Cycle
Earthquakes
100
This layer is the thinnest.
What is the crust?
100
The crust layer is divided into these
What are tectonic plates?
100
This is the name of the supercontinent
What is Pangea?
100
This type of rock is made of magma.
What is an igneous rock?
100
This is the spot directly above where the earthquake originated.
What is the epicenter?
200
This layer is beleived to be in a solid state due to intense pressure and heat.
What is the inner core?
200
These types of plates collide and can create earthquakes, mountains, or volcanoes.
What is a convergent plate?
200
This is the point where the earthquake actually started, the origin.
What is the focus?
200
This type of rock is created by smaller pieces of rocks/grains being compressed together.
What is a sedimentary rock?
200
This type of wave is fast and travels through anything.
What is a p-wave (primary wave)?
300
This layer is the thickest.
What is the mantle?
300
These plates slide past each other and can cause an earthquake.
What is a transform boundary?
300
This is how sedimentary rocks are formed.
What is when layers of rock pack together and harden?
300
Granite, obsidian, and pumice are an example of this type of rock.
What is an igneous rock?
300
These waves only travel in solids and are slower.
What is a s-wave (secondary wave)?
400
This layer is believed to be in a liquid state.
What is the outer core?
400
Pangaea is an example of this theory that the earth's continents were one giant landmass in the past.
What is the Theory of Continental Drift?
400
This is when an oceanic plate slips under a continental plate due to differing densities.
What is subduction?
400
These rocks are created from intense heat and pressure.
What are metamorphic rocks?
400
These waves occure above the crust.
What are l- waves (surface waves)
500
This is the layer where convection currents that move the tectonic plates happen.
What is the mantle?
500
These plates move away from each other and can create volcanoes or cause earthquakes or most likely be the cause of sea floor spreading.
What are divergent plates?
500
When weathered rocks move from one place to another.
What is erosion?
500
Shale, sandstone, and limestone are this type of rock, which tends to be grainy.
What is a sedimentary rock?
500
When rocks break down into smaller pieces.
What is weathering
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