Tectonic Plates
Landforms
Convection/Continental Drift
Volcanos
Earthquakes
100
What happens when tectonic plates move towards each other?
Lithosphere is destroyed.
100
Name the four landforms that make up plate boundaries.
What are:  mountain range, ocean ridge, deep ocean trench, and volcano.
100
What do scientists believe is responible for the movement of tectonic plates?
Convection currents within the asthenosphere.
100
Where do volcanoes most often occur?

Name one of the three?

Convergent plate boundaries

Hot spots

At or near divergent plate boundries

100
Earthquakes are most often caused by?
"Grinding" of tectonic plates.
200
What do you call a plate boundary at which the tectonic plates move away from each other? 
What is a divergent boundary.
200
What do you call the deep valley between the mountains of a mid-ocean ridge?
What is a Rift.
200
What is the Continental Drift Theory?
The continents were once joined together as a supercontinent.  Over time, the supercontinent drifted apart.
200
What do you call the pipe that magma travels up in a volcano?
The conduit.
200
Earthquakes release energy in the form of?
Seismic Waves.
300
What happens when tectonic plates move away from each other?
Lithosphere is created.
300
A mountain range is most often found at?
A convergent boundary.
300
What do scientists call the original supercontinent?
Pangea
300
What do you call the depressed region at the top of the volcano?
A crater.
300
What number would a Earthquake with total destruction to buildings be on the Richter Scale?
8 or more.
400
What type of plate boundary is also known as a conservative plate boundary?
A transform boundary.
400
A deep ocean trench is most often found where?
Two tectonic plates collide and one subducts below the other.
400
What do scientists use as evidence for the Continental Drift Theory?
Coal deposits in North America match up with coal deposits across Europe.

The east coast of South America compliments the west coast of Africa.

Fossils of the same plants and animals living at the same time were found in South America, Africa, India and Australia.

400
Name the three stages of volcanic island formation:
Submarine phase, Explosive phase, Subaerial phase.
400
A tsunami is most often caused by:
Earthquakes with an epicenter in the ocean.
500
This layer is made of large slabs of rock that cover the Earth.
What is the Lithosphere.
500
A volcano usually forms at what type of boundary?
A convergent plate boundary.

(The subducted plate melts and rises up through rupters in the earth's crust)

500
What do you think would happen if the earths's asthenosphere (the top part of the mantle) was EVENLY heated?  
Tectonic plates would stop moving.
500
The Hawaiian Islands formed:
Over a hot spot in the Pacific Ocean.
500
What is the relationship between the focus and the epicenter of an earthquake?
The focus is the point within the Earth's crust where the earthquake originates.  The epicenter is the location on the Earth's surface directly above the focus.
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