Show:
Wegener
Under the Sea
Plate Tectonics
Boundaries
Random
100
The name Wegener game to the super-continent that existed 300 million years age
What is Pangea?
100
The adding of new material to the ocean floor
What is Sea-Floor Spreading?
100
This constant motion causes the plates to move
What are Convection Currents?
100

When two plates collide

What is Convergent Boundaries?

100

True or False: Radiation is the transfer of energy through space.

What is true

200
Term for an ancient organism that has been preserved in rock
What is a Fossil?
200
Long underwater mountain chains formed by divergent boundaries
What are Mid-Ocean Ridges?
200

Two types of crust. One is more dense

What are continental and oceanic. Oceanic is more dense.

200
When two plates separate
What is Divergent Boundaries?
200

Term for denser plate sliding beneath less dense plate into the mantle

What is subduction?

300
Wegener's hypothesis was rejected because he could not prove this
What is How the Plate Move?
300
During subduction, the ocean floor sinks back into the mantle creating these underwater
What are Deep Ocean Trenches?
300
Two continental plates colliding will create this
What are Mountains?
300
When two plates slide past each other
What is Transform Boundaries?
300

Layer of the Earth that is a dense solid ball of iron

What is the inner core?

400
Term for the continents slow movement on Earth's surface
What is Continental Drift?
400
The 3 types of evidence for sea-floor spreading are ocean material, rock drilling, and this
What is Magnetic Stripes?
400
Transform boundaries usually cause these
What are Earthquakes?
400
Two continental plates separating will create this
What is a Rift Valley?
400

Plate boundary that forms a rift vally

Divergent

500
The remains of a tropical plant in a cold area was proof of this type of evidence
What is Climate?
500
In the mid-1900s, scientists mapped the ocean floor using this
What is Sonar?
500

Evidence that supported Wegener's hypothesis

What is climate, continental features, mountains, fossils.

500
In the mid-1960s, geologists combined all they knew about plates into a single _____________
What is Theory?
500

Plate boundary that forms mountains and volcanoes

What is convergent boundary?