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Vocabulary
Wegener
Plate Boundaries
Plate Boundaries 2
100
A crack in the Earth's crust along which movement takes place
What is a fault
100
The name of his theory
What is continental drift
100
This is where two plates slide past one another horizontally
What is a transform boundary
100
If one plate is enlarging, then logically the other plate must be doing this since the size of the planet doesn't change.
What is shrinking/getting smaller/ subducted
200
Where two tectonic plates meet edge to edge
What is a plate boundary
200
The name of the supercontinent that existed 250 million years ago
What is Pangea
200
Where two tectonic plates pull away from one another
What is a divergent boundary
200
The name of the boundary that shows where Africa and South America split up.
What is the Mid- Atlantic Ridge
300
The layer of Earth that includes the crust and the rigid upper mantle
What is the lithosphere
300
Name 2 pieces of evidence he had to support his theory
Answers vary
300
Where two plates move toward one another
What is a convergent boundary
300
Outlines Earth's subduction zones
What is the Ring of Fire
400
A process in which magma wells up and fills the space between spreading tectonic plates
What is sea floor spreading
400
The reason his theory wasn't easily accepted.
What is he couldn't explain how the continents move.
400
This kind of convergent boundary results in the formation of mountains
What is continental- continental
400
In Tectonic Plate Theory, what actually moves?
What are the plates
500
The solid layer just below Earth's crust.
What is the mantle.
500
The name of the reptile that couldn't swim across the Atlantic Ocean from South America to Africa
What is the mesosaurus
500
While they mostly occur in the ocean, a land example is the Great Rift Valley
What are divergent boundaries.
500
In sea floor spreading, where is the youngest ocean floor found?
What is the mid-ocean ridge