Show:
Plate Tectonics
Earthquakes
Volcanoes
Plate Boundaries
Hodge Podge
100
Who is the German scientist who first suggested the theory of plate tectonics?
Alfred Wegener
100
The name for the type of waves created by an earthquake.
Seismic Waves
100
The name of the opening at the top of a volcano where the magma erupts from.
Vent
100
The type of boundary where two plates come together.
Convergent Boundary
100
The instrument that is used to record ground movements created by seismic waves.
Seismograph 
200
The theory that states the Earth's crust is broken into sections or pieces that fit together like a puzzle is called...
The Tectonic Plate Theory
200
The area beneath the Earth's surface where the earthquake begins.
Focus
200
The large pool of magma that lies beneath a volcano.
Magma Chamber
200
Two plates slide past each other at this type of boundary.
Transform Boundary
200
An opening in the Earth's surface where magma is able to reach the surface.
Volcano
300
The two types of tectonic plates are...
Oceanic and Continental 
300
The point on the Earth's surface that is directly above the focus.
Epicenter
300
The type of volcano that is created from alternating layers of lava and ash produced from both quiet and explosive eruptions.
Stratovolcanoes
300
New crust is formed at this type of boundary.
Divergent Boundary
300
The measure of the amount of energy released by an earthquake is called...
Magnitude
400
When one plate is pushed under another it is called a ________________ zone.
Subduction
400
Which seismic wave is a fast moving compression wave?
P Waves
400
The result of a stratovolcano exploding, collapsing, and sinking into the Earth.
Caldera
400
Three land formations that can be seen at convergent boundaries.
Deep-ocean trenches, volcanoes, island arcs, and mountains.
400
The two types of volcanic eruptions.
Quiet and Explosive
500
The layer below the lithosphere that the plates are sliding across is called the...
Asthenosphere 
500
When an earthquake causes moisture in the soil to be pushed to the surface and cause the surface to act more like a liquid, this is called...
Liquefaction
500
The name of the Washington state volcano that erupted violently in 1980.
Mt. St. Helens
500
An undersea mountain chain that is created at a divergent boundary.
Mid-Ocean Ridge
500
The names of the three plates that create the triple junction to the west of Humboldt County.
Pacific, North American, and Juan de Fuca Plates