Show:
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

The part of the earth that takes up the upper part of the mantle, directly under the Lithosphere.

What is the Asthenosphere?

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 continental plates 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 plate moves underneath the continental plate.

What are volcanoes?

300
This is how many years ago earth's "supercontinent" began to split apart.
What is 200-250 million years ago?
300
This ocean is currently growing in size due to seafloor spreading.
What is the Atlantic Ocean?
300

This is the total number of plates known on earth.

What is 30?

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
This is where older ocean floor is located?

Near the coasts or further away from the Mid Ocean Ridge

400
This is the average distance the earth's plates move per year.
What is 1 inch / year?
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

This profession was the first group of people to notice the fit of continents.

What are mapmakers?

500

This rises and cools to create new ocean floor. 

What is magma?

500

These are the two types of plates found on earth and their densities and thicknesses?

What is continental plate (less dense, but thicker) and oceanic plate(more dense, but thinner)?

500

This features stationary movement in areas with high volcanic activity.

What is a hotspot?

500

This feature is formed in the ocean when one oceanic plate is forced below another oceanic plate

What are trenches?