Pangea
What was Alfred Wegner's theory?
The continental drift.
How are types of boundaries classified?
By their movement.
Plate tectonics cause all of these natural disasters Except: earthquakes, tsunamis, tornadoes, or volcanic eruptions.
Which is lighter: Oceanic or Continental crust
Continental
Explain Alfred Wegner's theory.
Landmasses were drifting across the Earth.
How does a divergent plate boundary move?
When two plates move away from each other.
When the ocean has sudden SEAfloor movement it causes
Tsunamis
This type plates separate, magma oozes up forming a mountain ridges in the ocean.
Divergent Plate Boundary
What is another term for Pangea?
A supercontinent.
What type of crust do convergent plate boundaries have?
it can have both oceanic and continental crust.
What island was created by volcanoes?
Hawaii.
When two plates of continental crust with the SAME density run into into each other, they make?
Mountains
How long did it take for Pangea to drift into what it is today?
220-250 million years.
What type of type of boundary and crust cause mountains?
Convergent Plate Boundaries
When new magma floats up slowly through a plate is causes?
Volcanic eruption
Which of these boundaries has three different movements?
Convergent boundary plates
Which of the Earth's oceans is getting smaller?
The Pacific ocean
These plates slide past each other in opposite directions.
A Transform Plate Boundary
True or False earthquakes occur at all plate boundaries?
The statement is true
Can you name the three different types of convergent boundary plates?
continental vs. continental
oceanic vs, oceanic
continental vs. oceanic