Layers of the Earth
Plate Boundaries
Continental Drift
Earthquakes
Volcanoes
100
The thinnest layer of the earth
What is the crust?
100
The boundary where plates move TOWARD one another
What is convergent?
100
The name of the scientist who gathered evidence to support the theory of continental drift.
Who is Alfred Wegner?
100
The type of boundary where earthquakes most often occur
What is transform?
100
Molten rock below the earth's surface
What is magma?
200
Earth's only liquid layer
What is the outer core?
200
The boundary where midocean ridges and rift valleys can be found
What is divergent?
200
The name of the supercontinent that existed about 200 million years ago
What is Pangaea?
200
The two types of body waves
What are P-waves and S-waves?
200
This is what happens to the oceanic plate as it subducts under the continental plate
What is melt?
300
The crust and the top of the mantle, makes up tectonic plates
What is the lithosphere?
300
When an oceanic plate slides underneath a continental plate at a convergent boundary
What is subduction?
300
The type of evidence that showed the same types of rocks exist on matching coasts of different continents
What is geology?
300
The most damaging type of seismic wave
What are surface waves?
300
The reason why magma rises
What is extreme heat, lower density than crust?
400
The top of the mantle, the part that makes tectonic plates move
What is the asthenosphere?
400
The geologic feature that forms when two continental plates collide
What is a mountain (range)?
400
The type of evidence that showed ice sheets used to exist in Africa and Greenland used to be home to tropical plants
What is climate evidence?
400
A fracture in the crust along which blocks of rock on either side move
What is a fault?
400
The one place where volcanoes occur that is NOT near a plate boundary
What is a hot spot?
500
The way scientists figured out what is in earth's interior
What are seismic waves?
500
The boundary where you would most likely find a fault
What is a transform boundary?
500
The name of the creature whose fossils were found on the matching coasts of Africa and South America
What is the mesosaurus?
500
The force that opposes motion along transform boundaries, and when there's more of this, there is a bigger earthquake
What is friction?
500
The name for the most deadly effect of a volcanic eruption
What is a pyroclastic flow?
M
e
n
u