Terms I
Terms II
Terms III
Terms IV
Terms V
100
A mountain that forms when molten rock, magma, is forced to the Earth's surface.
What is a volcano?
100
Magma that flows onto the Earth's surface.
What is lava?
100
Fragments of rock that are created by explosive volcanic eruptions.
What is pyroclastic material?
100
A hole in the Earth's crust through which magma rises to the surface. It is located in the center of a volcano.
What is a vent?
100
Waves of energy that travel through the Earth.
What are seismic waves?
200
A break in the Earth's crust along which blocks of the crust slide relative to one another due to tectonic forces.
What is a fault?
200
The fastest type of seismic wave, which can travel through solids, liquids, and gases. They are also known as pressure waves.
What are primary (p) waves?
200
The second fastest type of seismic type that cannot travel through materials that are completely liquid. These waves are also known as shear waves.
What are secondary (s) waves?
200
A funnel-shaped pit around the central vent of a volcano.
What is a crater?
200
The point on the Earth's surface directly above an earthquake's starting point.
What is an epicenter?
300
A place on the Earth's surface that is directly above a column of rising magma called a mantle plume.
What is a hot spot?
300
The change in the shape of rock in response to stress.
What is deformation?
300
The point inside the Earth where an earthquake begins.
What is a focus?
300
A circular depression that forms when a magma chamber empties and causes the ground above to sink.
What is a caldera?
300
The sudden return of elastically deformed rock to its original shape.
What is elastic rebound?
400
A deep crack that forms between tectonic plates as they separate at a divergent boundary.
What is a rift?
M
e
n
u