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What is a tsunami?
a wave caused by an underwater earthquake
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What is a fault? (Earthquakes)
it's a crack in the earth's crust where movement has occurred
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What is the famous fault in CA?
San Andreas Fault
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How do you measure the intensity of an earthquake, and what is the name of the scale used to measure it?
- A seismograph (machine) measure intensity
- the Richter Scale is the name used to measure
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What is a dormant volcano?
A volcano with no recent activity, but scientists believe will erupt again
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What is an extinct volcano?
A volcano with no signs of activity over a very long period of time, thought to be unlikely to erupt in the future
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What is the name of the theory of how the continents were once grouped into one large land mass that broke apart because of plate movement?
Pangea
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What is the movement of plates?
The idea that the earth's crust is broken into a number of plates that are slowly moving.
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Name 3 famous volcanoes.
- Mount St. Helens (WA state)
- Vesuvius (Italy)
- Krakatoa (Indonesia)
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Parts of a volcano: (label on a diagram)
magma chamber, magma, vent, lava, ash and gases
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Label a diagram of the interior of the earth. (what are the four parts?)
crust, mantle, inner core, outer core
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What type of mountain is it when two plates collide, and the crust bends and buckles?
Folded Mountains
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What type of mountain is it when there are sections of rock that are separated by faults, lifts up
Fault-block mountain
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What type of mountain is it in which magma explodes out of an opening in the crust?
Volcanic Mountain
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What type of mountain is it when magma builds up and pushes on rock above?
Dome mountain
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