Show:
Alfred Wegner
Plates
Sea Floor Spreading
Boundaries
Challengers
100
What theory did Alfred come up with?
He came up with the theory of Continental Drift.
100

What layer of the Earth do the Plate Tectonics glide on?

aesthenosphere


100

Sea Floor Spreading is...

Sea Floor Spreading is when the sea floor spreads away so magma rises to the surface to take its place.

100

These type of boundaries have no volcanoes

Transform


100

What are the three types of volcanoes?

Cinder, shield, and composite

200
What was the super continent that Wegner discovered?
The super continent that he discovered was Pangea.
200

Plate Tectonics move each year. But how much do they move each year?

About the rate of the growth of a fingernail 

200
Sea Floor Spreading occurs where?
At mid ocean ridges.
200

These can be found at oceanic to oceanic divergent boundaries

Island Arcs

200

Hot spots occur because of this. 

Mantle plumes

300
Alfred Wegner was a scientist and a...
A meteorologist.
300

What causes Plate Tectonics to move?

Mantle Convection


300

What is found at divergent boundaries on land?

Rift Valleys

300

What could happen if the Mid-Atlantic ridge continues as it is now for the next 100 million years?

There could be a new supercontinent


300
Which ones are evidence of Plate Tectonics? A. Continental Drift B. Sea Floor Spreading C. Faults D. Boundaries
All of them.
400

Why did geologists and other scientists laugh at him?

Because he had no evidence to back up his ideas
400
How do Plate Tectonics effect us?
They effect us by causing different natural disasters.
400
When Sea Floor Spreading occurs what comes in place of the open floor?
Very hot magma comes to the surface and cools.
400
Convergent boundaries have ____ earthquakes

Deep

400

What evidence is proof of Continental Drift? A. Magnetic Reversal B. Fossil Evidence C. Fossil Fuels

B. Fossil Evidence

500
When did he discover Continental Drift?
He discovered Continental drift in 1913.
500
What do Plate Tectonics cause in our everyday lives?
Sea Floor Spreading, Continental Drift, and Earthquakes ect..
500

The further away from the mid-ocean ridge, the _____ the rocks.

Older


500

What type of boundary is the Indian and Eurasian plate boundary?

Continental to continental convergent

500
What are Plate Tectonics made of?
They are made of continental and oceanic crust.