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Effects
Definitions
Other
Boundary
Misc.
100
These three things are common effects of plate movements
What are volcanoes, earthquakes and mountains
100
The theory that the lithosphere of the earth is divided into a small number of plates which float on and travel independently over the mantle
What is plate tectonics
100
This super continent is what scientists believe existed approximately 250 mya
What is Pangaea
100
When two plates come together
What is convergent boundary
100
Fossils located in South America and Africa are evidence of this
What is continental drift
200
At a divergent boundary, plates spread and this comes to the surface
What is magma
200
Process that occurs at mid-ocean ridge, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge
What is sea floor spreading
200
The "weak" zone in the upper part of the earth's mantle where rock can be deformed in response to stress, resulting in movement of the overlying crust
What is asthenosphere
200
When two plates move apart
What is divergent boundary
200
Our earth is changing or staying the same
What is changing
300
At a transform boundary, these are likely to occur
What is an earthquake
300
A process where a denser plate "goes under" the other plate at a convergent boundary
What is subduction
300
This is broken up into major plates that move over the mantle; they are not the same as continents
What is the lithosphere
300
When two plates slide past each other
What is transform boundary
300
The three ways that plates can move
What are towards each other (convergent), away from each other (divergent), or by each other (transform)
400
The Himalayan Mountains occured as a result of
What is convergent boundary
400
A fracture in the crust of the earth
What is a fault
400
This is where 90% of the world's earthquakes occur and 75% of the world's volcanoes exist
What is the "Ring of Fire"
400
A mid-ocean ridge occurs at
What is a divergent boundary
400
At a divergent boundary, this is likely to come up from the mantle
What is magma
500
This is "harbor wave" is caused by an underwater earthquake or another movement of earth
What is a tsunami
500
The crust plus the solid part of the mantle
What is the lithosphere
500
This is the person who advanced the theory of continental drift
Who is Alfred Wegener
500
Sea floor spreading occurs at this type of boundary
What is a divergent boundary
500
This is the longest mountain range in the world
What is the mid ocean ridge