Boundaries
Plate Tectonics
Causes/Earth's Structure
Locations
Grab bag
100
What are the three types of plate boundaries?
Convergent, Divergent, Transform Boundaries
100
When two oceanic plates converge, what happens?
the older and more dense plate will subduct
100
What are some natural disasters that are caused by plate tectonics?
Volcanic Eruptions, Earthquakes, Tsunamis
100
The Nazca plate subducts under the South American plate. What type of plate boundary is this?
Convergent
100
What type of plate boundary? Which plate is oceanic and what is happening?
Convergent, the Nazca plate is oceanic and is subducting under the South American plate
200
What type of boundary is it when crust destroyed (for example in subduction zones)?
Convergent Boundary
200
What is another name for lithosphere?
crust
200
What is the composition and state of matter of Earth's inner core?
Iron/nickel, solid
200
Where is a place on earth that you can walk on the Mid-Atlantic ridge?
Iceland
200
What type of plate boundary?
Divergent plate boundary
300
What type of boundary is it when new crust forms? (It is a constructive process)
Divergent Boundary
300
Which plate subducts when an oceanic and continental plate collide and why?
the oceanic plate because it is denser. (it is also thinner than continental plate)
300
What is the layer of solid yet malleable material that can flow?
mantle
300
Where can transform boundaries be found? (HINT: in the USA)
California (San Andreas fault)
300
What evidence did Alfred Wegener use to develop his theory of continental drift?
continents the fit like puzzle pieces (the shape of continents), matching mountain ranges and rock types, coal, salt, and coral reefs in unexpected locations, fossil evidence, ancient climate patterns, and glacial evidence
400
What type of boundary is it when two plates slide past each other?
Transform Boundary
400
What causes plates to move?
Convection Currents
400
What is the layer of molten iron that helps creates Earth's magnetic field?
outer core
400
What mountain range is formed by continental-continental convergent plate boundaries?
Himalayan Mountain Range (Himalayas)
400
Who used Alfred Wegener's theory, along with paleomagnetism and bathymetry data to develop the theory of seafloor spreading?
Harry Hess
500
What are the three types of convergent boundaries? (hint: the two types of crusts in each interaction)
continental-continental, oceanic-oceanic, and oceanic-continental
500
What kind of plate boundary?
Divergent
500
What is a thin, rock layer that is very brittle and floats on the layer below
what is the crust
500
What is an example of a trench formed by oceanic-oceanic plate boundaries?
Mariana Trench
500
After new evidence was found, plate tectonics theory replaced what?
continental drift theory