Plate Boundaries
Theory & Speed
Earthquake & Volcano
Under the Sea
Forming land
100
Plate movement when plates move past each other
What is a transfom boundary
100
The hypothesis that continents move slowly
What is continental drift
100
The types of boundaries that earthquakes occur along
What are transform, convergent and divergent
100
New ocean is created here
What is at mid-ocean ridges
100
These can only form when subduction of a plate occurs, or along hotspots
What are volcanoes
200
A place where 2 plates collide
What are convergent boundaries
200
The theory that all continents made up one large landmass
What is pangea
200
The instrument that measures seismic waves
What is a seismograph
200
As new rock forms the old rock moves _____________ from the ridge
What is away
200
The amount of force per unit area put on material
What is stress
300
A Boundary between 2 layers moving apart
What are divergent boundaries
300
molten lava coming up onto the seafloor and creating new crust
What is seafloor spreading
300
volcanoes can not form at the convergent boundaries unless the land is pushed down into this
What is the subduction zone
300
This is forced up at the mid-ocean ridges to form new crust when it cools
What is Magma
300
The 3 types of folding due to stress
What are anticlines, synclines, monoclines
400
An area where oceanic plate goes down into the mantle
What is a subduction zone
400
The speed of seismic waves depends on this
What is density of the rocks
400
Magma that reaches the earth's surface can form these mountains
What volcanic mountains
400
When th edge of the oceanic plate sinks and pulls the rest of the tectonic plate with it
What is slab pull
400
The 2 types of stress
What is compression & tension
500
The Layer of earth that makes up the tectonic plates
What is the lithosphere
500
The theory that states that the heating, rising , sinking, and cooling that explains why plates move
What is convection
500
Major earthquakes occur next to these
What are tectonic plates
500
The process by which oceanic plates slide down the lithosphere-asthenoshere boundary
What is ridge push
500
The 3 types of faults
What is normal, reverse, & strike slip
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