Plate Tectonics 1
Plate Tectonics 2
Plate Tectonics 3
Boundaries
100
What causes the movement of Tectonic Plates?
Convection currents in the Mantle
100

What is the outermost layer of the Earth called?

Crust

100

Which crust is the oldest: continental or oceanic?

Continental 

100

What type of feature forms at transform boundaries?

Faults

200

What layer of Earth is made of mostly solid iron & nickel?

Inner Core

200
What do you call the area where two tectonic plates meet?
Plate Boundary
200
What happens when a continental plate converges with a continental plate?
Their densities are similar and result in both plates pushing upward into mountains
200
What type of boundary is made when two tectonic plates collide?
Convergent
300
What layer do the tectonic plates float on?
Asthenosphere
300
What is a boundary where two plates slide along each other?
Transform
300

What type of boundary is the East African Rift?

Divergent 


300

Creates mid-ocean ridges

Divergent Boundaries 

400

Mantle hot spots allow _______ & _______ to form 

Volcanoes and island arcs

400

What is the main feature that forms at continental-oceanic converging plate boundaries? 

Trench

400

What hardens to form new rock at mid-ocean ridges?

Magma

400

Which crust is thinner: continental or oceanic? 

Oceanic

500
Who developed the theory of continental drift?
Alfred Wegner
500

Where is volcanic activity more frequent at?

The edges of the plate boundaries

500
What is the theory that the earth's surface is broken up into large pieces that float on top of the asthenosphere?
The Plate Tectonic Theory
500
The type of tectonic plate boundary that sometimes has a subduction zone is ______.
Convergent Boundary
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