Vocabulary
Earthquakes and Volcanoes are usually located in relation to these
What is a plate boundary?
The Himalayan mountains are an example of this type of landform.
What are fold mountains?
What is lava or magma?
This was found in Antarctica and in the north, suggesting that these places were once in warmer places.
What is coal or fossils of ferns?
This is how thick the Earth crust is.
What is 25- 100 km thick?
Subduction is when one plate does this to another
What is moves below it?
Plates float on top of the _______________________.
What is the mantle?
Evidence of tropical plants were found on this continent.
What is Antarctica?
These 2 things are sitting on the plates.
What are ocean and land (continents)?
These often occur in places near plate boudaries.
What are earthquakes/ volcanoes?
This landform is created when two plates of the same thickness collide.
What is a fold mountain?
The two kinds of plates.
What are oceanic and continental?
Pangaea existed this many millions of years ago.
What is around 250 million years ago?
This happens when part of the mantle squirts up through a crack in the crust.
What is a volcano?
Eventually, the continents will move back together because of this reason.
What is, they are still moving?
The Earth's crust is thinnest under the _____________________ and thickest under the _____________________.
What is thinnest under the ocean and thickest under the continents?
Continental Drift Theory was not accepted because it did not explain this.
What is how the continents moved?
This happens when two plates move beside each other at different speeds until they pull apart.
What is an earthquake?
Alfred Wegener died before he could explain this
What caused the continents to move?