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100
How do we know what the Earth is made of?
What is Geophysical surveys?
100
The Earth’s crust is divided into ___ major plates which are moved in various directions
What is 12?
100
Which crust is older?
What is continental?
100
This crust is buoyant
What is the continental crust
100
This crust denser than the other
What is oceanic crust?
200
This is made of crust and the upper mantle.
What is the lithosphere?
200
These are the three types of plate boundaries.
What are divergent, convergent, and transform?
200
When the subducting plate is bent downward and forms a very deep depression in the ocean floor its called a what?
What is a trench?
200
Volcanos are formed by these 3 things...?
What is What is Subduction, Rifting, and Hotspots
200
As a tectonic plate moves over a fixed hotspot, a chain of what forms?
What is volcanoes?
300
These plate boundaries move back and forth against each other.
What are transforming plates?
300
This country is an example of continental drifting.
What is Iceland?
300
These form mountains and mountain ranges.
What is continental collision?
300
At the boundaries between plates, friction causes them to stick together. When built up energy causes them to break what happens?
What is Earthquakes?
300
These are the two types of tectonic plates.
What are oceanic and continental plates?
400
Made up of rigid lithosphere.
What are tectonic plates?
400
Below the lithosphere is.
What is the asthenosphere?
400
Are moved by the underlying hot mantle convection cells.
What are the plates?
400
These plate boundaries move away from each other.
What are divergent plate boundaries?
400
These plate boundaries move against each other.
What are convergent plates?
500
The top layer of the earth.
What is the crust?
500
The middle and thickest layer of the earth.
What is the mantle?
500
The center layer of the earth.
What is the core?
500
This crust is 10-70 km thick.
What is the continental crust?
500
Refers to the deformation of the crust as a consequence of plate interaction.
What is tectonic?