These occur at all types of plate boundaries because of built pressure and tension.
What are earthquakes?
100
He developed the idea of continental drift
Who is Alfred Wegener?
100
Old crust is ___________ and new crust is ____________ over time at plate boundaries
What is old crust is destoryed and new crust is formed over time at plate boundaries?
200
This layer has two different states.
What is the mantle? (the upper part is solid and the lower part is liquid)
200
This makes a volcano less explosive
What is less gassy magma
200
Where a denser plate slides under a less dense plate is is destroyed/remelted in the mantle.
What is Subduction?
200
What the large, single land mass was called millions years ago.
What is Pangea?
200
Lithosphere refers to these layers of the earth.
What is the crust and UPPER mantle
300
This is about 100km below the surface is not considered a true layer.
What is the lithosphere?
300
These form large, broad volcanoes and have fast-moving, less gassy magma/lava
What is a Shield volcano
300
This type of boundary has earthquakes and volcanoes and is found in the Atlantic Ocean.
What is a divergent boundary?
300
This is the idea of continental drift.
What is the idea that continents were once joined together to form a large land mass?
300
New lithosphere is mostly created at this type of boundary.
What is Divergent?
400
This is at the earth' center
What is the inner core?
400
This has an explosive eruption that is followed by lava outpouring. It is formed by layers of lava and ash.
What is a Compsite (stratovolcano) Volcano
400
This type of boundary only results in earthquakes and can be found at the boundary of the North American Plate and the Pacific Plate.
What is a transform boundary?
400
This is the theory of plate tectonics.
What is the surface of the earth is made up of large plates that have moved over time?
400
Himalayan mountains were formed at this type of boundary.
What is convergent?
500
This/These layer(s) is/are completely solid
What is the inner core and crust
500
This is an explosive volcano that has magma that cools and hardens as it falls back to earth. It forms on sides of larger volcanoes.
What is a Cinder Cone volcano?
500
This type of boundary can have different outcomes depending on the type of lithosphere present.
What is a convergent boundary?
500
Evidence that supports the idea that continents have difted over time.
What are fossils across continents, same rock layers across continents, continents are moving at a rate of centimeters per year, glacier grooves, etc.?