Vocabulary
Fill in the blank
Effects
Examples
Facts
100
What kind of boundary is it when two plates slide towards each other and one goes under the other?
Convergent and Subduction
100
------------- is the plastic like layer of Earth's surface below the lithosphere.
Asthenosphere
100
Transform boundary cause what kind of effects?
Earthquakes
100
What kind of stress happens at convergent boundaries?
Compression
100
Folded mountains are formed at what type of boundary?
Convergent
200
What kind of boundary is it when two plates slide past each other?
Transform
200
----- is the outermost layer of Earth's surface.
Crust
200
What two things are formed at subduction zones?
Volcanoes and Trenches
200
What type of tension happens at divergent boundaries?
Tension
200
Studying the ocean floor scientist found rocks showing what?
Magnetic Reversal
300
What type of boundary is it when the plates slide away from each other?
Divergent, Separation
300
------ is the largest layer of Earth's surface. It is made of mostly silicon, oxygen, magnesium, and iron.
Mantle
300
What forms around the ring of fire?
Volcanoes
300
Volcanic mountains are formed along what type of boundary?
Subduction and Convergent
300
Who proposed the theory of continental drift?
Alfred Wegener
400
What type of stress that happens along transform boundaries?
Shear
400
------- is one large land mass hypothesized to have broken apart about 200 million years ago.
Pangaea
400
What forms above a hot spot?
Volcanoes/ Volcanic Islands
400
Ocean trenches are an example of what type of boundary?
Subduction, or Convergent
400
Continental drift occurs because of?
Seafloor Spreading
500
The lithosphere is divided in to a bunch of pieces called?
Tectonic Plates
500
------------ is a sensing device that detects magnetic fields, helping to confirm sea floor spreading.
Magnetometer
500
What forms at divergent boundaries?
Ridges
500
A rift valley is an example of what type of boundary?
Divergent
500
The seafloor spreading theory was proposed by who?
Harry Hess
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