Boundaries
What are the three types of boundaries?
Convergent, Divergent, Transform Boundaries
What is it called when transform boundaries slide past one another?
Slip
What natural disasters are caused by plate tectonics?
Volcanic Eruptions, Earthquakes, Tsunamis
What type of boundary caused the Alaska 1964 earthquake?
Who was the scientist who came up with the idea of continental drift?
Alfred Wegener
What type of boundary is it when the crust is destroyed?
Convergent Boundary
What is another name for lithosphere?
Crust or Upper Mantle or Plate Tectonics
What causes mountains?
Two continental plates colliding
Where can divergent boundaries be found? (give 1 example we have discussed)
Iceland (between the North American Plate and Eurasian Plate)
Africa (Between the African Plate and the Somalian Plate)
What evidence did Alfred Wegener use? (give 2 examples)
the shape of continents, fossil evidence, matching rock types and geological structures, and ancient climate patterns
What type of boundary is it when new crust forms?
Divergent Boundary
What causes subduction to occur?
When an oceanic plate and a continental plate collide.
What causes a rift, such as the African Rift Valley?
Divergent Boundary - Two plate moving apart from one another.
Where can transform boundaries be found in the US?
California
Why did scientists at the time not believe Alfred Wegener's theory? What piece of evidence had not been discovered yet?
Convection currents being the driving force moving the plates.
What type of boundary is it when two plates slide past each other?
What causes plates to move?
Convection Currents
What causes a subduction zone?
When 2 plates collide. One plate is less dense than the other and ends up subducting under the plate that has a higher density.
What iconic mountain range is formed by continental-continental boundaries?
Himalayan Mountain Range (Himalayas) ...Mount Everest
Describe the theory of plate tectonics. (What can they do? Give at least 2 examples)
They can cause earthquakes, tsunamis, mountains, volcanoes, rifts, and many other natural processes.
What are the three types of convergent boundaries?
continental-continental, oceanic-oceanic, and oceanic-continental
What are plate tectonics?
Broken parts of lithosphere that carry continents and oceans
What causes an earthquake?
When plates slip past each other, or when plates move apart, or when plates collide into each other.
What would likely be found deep under the ocean at a subduction zone?
What did Alfred call the super continent?
Pangaea.