Contiental Drift
Seafloor Spreading
Earth's Plates
Plate Boundaries
Effects of Plate Tectonics
100
This is the name of the proposed "supercontinent" where all the earth's continents were once joined together.
What is Pangaea?
100
Seafloor Spreading occurs at what type of plate boundary?
What is a divergent boundary?
100

What  process causes the earth's crust to move?

What is Convection?

100
This type of plate boundary involves two plates moving apart from one another.
What is a divergent boundary?
100
These features are produced on earth when two continents collide.
What are mountains?
200
This is the meteorologist who first proposed the Theory of Continental Drift
Who is Alfred Wegener?
200
These features form as new crust rises to the surface during seafloor spreading
What are mid-ocean ridges?
200
This is the rigid upper layer of the earth which inlcudes the earth's crust and upper most mantle.
What is the lithosphere?
200
This type of plate boundary involves two plates moving toward each other.
What is a convergent boundary?
200
These features are produced on the coasts of continents where oceanic crust moves underneath the continent.
What are volcanoes or volcanic arcs?
300
This is how many years ago earth's "supercontinent" began to split apart.
What is 200-250 million years ago?
300

What plate is Hawaii located on?

What is the pacific plate?

300
This is the average distance the earth's plates move per year.
What is 1 inch / year?
300
This type of plate boundary involves one plate sliding past another plate.
What is a transform boundary?
300
These natural disasters occur when a sudden movement occurs along transform boundaries.
What are earthquakes?
400
These are the two types of evidence that were initially used to support the Theory of Continental Drift.
What are similar shapes of coastlines and fossil evidence?
400

What type of boundary causes a trench?

What is a subduction zone?

400

In a subduction zone, why does one plate go underneath another?

Bonus: Where is the only place this occurs?

What is density? 

The denser plates moves underneath the lesss dense place.

Bonus ***Only happens with oceanic crust***

400
This is the term for one plate being forced underneath another plate.
What is Subduction?
400
This is the name of fault found in California where several major earthquakes have occured.
What is the San Andreas Fault?
500

How are glaciers used as proof of the continental drift theory?

Bonus: Name both proofs connected with glaciers

What are striations/scratches that match up?

Glacial striations also show that the land where they were found used to be covered in ice and therefore was a cold climate.

500

How do scientists determine the ages of rock at mid ocean ranges?

What is younger rock closer and older rock farther away?

500

How does the convection process cause the plates to move?

The process of convection causes the earth's crust to move through the circulation of magma within the mantle. 

 Convection currents happen when Magma heats up, as it gets closer to the core, then cools down, as it gets closer to the surface. This circulation pushes boundaries together, convergent boundaries, and pulls boundaries apart, divergent.

500

This is the term for the fracture created when one plate suddenly slides past another plate.

What is a fault/transform boundary?

500
These two features form in the ocean when one oceanic plate is forced below another oceanic plate
What are trenches and volcanic islands?
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