Show:
Theories
Convergent Boundaries
Divergent Boundaries
Transform
Vocabulary and Other
100
The scientist that came up with the theory called continental drift.
Who is Alfred Wegener?
100
Plates move in this direction at a convergent boundary.
What is towards each other?
100
When plates diverge from each other, they move in this direction.
What is apart or away from one another?
100
When plates move at a transform boundary, they move...
What is past each other?
100
This technology/method was used to map the sea-floor.
What is sonar?
200
The name of a super continent that existed over 200 million years ago.
What is Pangaea?
200
When an oceanic crustal plate collides with either another oceanic crustal plate or a continental plate, this process occurs.
What is subduction?
200
This feature is formed where two oceanic crustal plates diverge.
What is a mid-ocean ridge?
200
Because the crustal plates can be jagged, sometimes plates at transform boundaries do this.
What is lock into place?
200
Two types of crust include...
What is continental and oceanic?
300
Evidence for the theory of continental drift included: the shape of the continents looking like they fit together, the discovery of unique fossils on separated landmasses such as the Mesosaurus, matching rock samples in mountain ranges on coastal areas where continents would meet up, and....
What is evidence of climate change (that shows the continents must have at one time been closer or farther from the equator).
300
When one oceanic crustal plate subducts below another crustal plate (oceanic or continental) this feature is created.
What is a deep-ocean trench?
300
This material rises out at a mid-ocean ridge and cools to become part of the oceanic crust.
What is magma
300
Over time, stress builds up at a transform boundary and pieces of the crust can break allowing the plates to slip past each other. This releases a lot of energy that can be felt as an....
What is an earthquake?
300
This includes the crust and the upper part of the mantle, is hard, and is broken into plates.
What is the lithosphere?
400
Alfred Wegener's theory could never explain this...
What is "how the continents are moving?"
400
Subduction is caused by....
What is density (the denser plate will sink below the less dense plate)
400
This process describes the events occurring at the mid-ocean ridge in which magma rises, cools, and is added to the crust.
What is sea-floor spreading?
400
This type of wave is produced by earthquakes and can be used to study the structure of Earth.
What is a seismic wave?
400
This section is below the lithosphere and is semi-liquid (it flows, but it's thick!)
What is the asthenosphere?
500
An explanation that states the plates are constantly moving due to convection currents in the mantle
What is the theory of plate tectonics.
500
When two continental crustal plates collide, they form.....
What is mountains?
500
When continental crustal plates diverge they form these.
What are rift valleys?
500
One major example of a transform boundary found in California.
What is The San Andreas Fault?
500
The formation of mountains and volcanoes can be explained by the theory of...
What is plate tectonics?