Continental Drift
Who developed the Hypothesis of Continental Drift?
Who is Alfred Wegener?
The movement of a Convergent Boundary.
What is colliding?
The movement of a divergent boundary.
What is dividing?
The movement of a transform boundary.
What is sliding?
Which two continents did Wegener use as evidence for continental fit?
What is South America and Africa?
Made when two continental crust collide.
What is a mountain?
Made when two continental crust divide.
What is a rift valley?
What is made when two continental crust slide?
What is an earthquake?
What was the name of the supercontinent that existed over 200 million years ago?
Pangaea
What are 2 landforms made when continental and oceanic crust collide?
Volcanoes and trenches
Made when two oceanic crust divide?
What is a mid-ocean ridge
What is the area called where two plates are next to each other at a transform boundary?
What is a fault line?
What does the theory of plate tectonics have that the hypothesis of continental drift did not?
That convection currents in the mantle cause the plates to move.
What is the area called where the oceanic crust goes below the continental crust? Why does the oceanic crust sink?
What is subduction zone? What is because it is more dense?
When crust divides, what is able to make its way to the surface?
What is magma?
At what rate do the plates move?
1 - 10 centimeters per year, or as fast as your fingernails grow.
What were 3 pieces of evidence Wegener had to support his theory?
What is fossil evidence, evidence from landforms, evidence from climate?
What is responsible for the movement of tectonic plates?
What is convection currents?
What are the differences between continental and oceanic crust?
Continental crust is less dense and thicker than oceanic crust
A famous fault at a transform boundary we spoke of in California.
What is the San Andreas Fault?