| Plate Tectonics | Conitnental Drift | Layers of the Earth |
|---|---|---|
|
Plate boundaries.
Earthquakes and Volcanoes are usually located in relation to these.
|
Alfred Wegener.
Who invented the Continental Drift theory?
|
4
There are _ main layers to the Earth.
|
|
A destructive boundary.
What is another name for a convergent boundary?
|
Africa and South America.
Evidence of matching animal fossils were found from what two continents?
|
Asthenospere.
Plates float on top of the ____.
|
|
A divergent boundary.
A divergent boundary.The mid-ocean ridge is an example of what kind of boundary?
|
Antarctica.
What continent were tropical plants found on?
|
The mantle.
What is the thickest layer of the Earth?
|
|
Convection currents.
What is the mechanism (what causes) the plates to move?
|
Because it did not describe how the continent moved.
Why was the Continental Drift theory not accepted?
|
The lithosphere.
What includes the crust and upper mantle?
|
|
Subduction and Collision.
What are the two types of convergent boundaries?Subduction and Collision.
|
About 200-250.
Pangaea existed about ___ million years ago.
|
Thinnest under the ocean and thickest under the continents.
The Earth's crust is thinnest under the _____________________ and thickest under the _____________________.
|
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