Show:
Volcanoes
Earthquakes
Mountains
siesmic waves
faults
100
Magma that has reached earth's surface.
What is lava?
100
measures the ground movements.
What is a seismograph?
100
mountains can form as rocks move along faults
how do mountains form (name one way)?
100
The fastest siesmic waves.
What is pimary waves?
100
A fracture or break in earths lithosphere.
What is a fault?
200
An opening in Earth's crust through which molten rock fragments, and hot gases erupt.
What is a volcano?
200
measures to magntude values of an earthquake.
What is a richter scale?
200
fault block mountain
What is a mountain that forms as blocks of rock move up or down along normal faults?
200
travel at half the speed of pimary waves.
What is secondary waves?
200
Located along tectonic plates.
Where are most faults located?
300
A dense cloud of superhot gases and rock fragments that races downhill.
What is pyroclastic flow?
300
The force excerted when an object presses on, pulls on, or pushes against another object.
What is stress?
300
folded mountain
What is a mountain that forms as continental crust crumples and bends into folds?
300
The most powerful siesmic waves.
What is surface waves?
300
lithosphere
Where do all earthquakes occur?
400
Shaped like a broad, flat dome.
What is a sheild volcano?
400
Are vibrations caused by earthquakes.
What is a siesmic wave?
400
the earth would become completely flat
What would happen if techtonic plates stopped moving?
400
Measures a seismic wave.
What is a seismograph?
400
Rocks are pushed togethor.
What is a reverse fault?
500
A cone-shaped volcano.
What is a composite volcano?
500
The point on earth's surface directly above the surface.
What is the epicenter?
500
years of wind and water break mountains down
What causes montains to break down?
500
Vibrations caused by earth.
What is seismic waves?
500
Rocks pull apart.
What is a normal fault?