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10
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What is a seismograph and how does it help scientists?
An instrument that detects, measures, and records the energy of earthquake vibrations at a given location.
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15
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What are the three types of volcanoes?
Cinder cone, shield, composite.
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20
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Compare and contrast P-waves and S-waves.
Wow, you really know your stuff! / Sorry, we were looking for...
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20
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What are the 2 types of seismic waves and where do they travel?
Surface waves near earth's surface; body waves through the interior of earth.
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25
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Why do so many island chains and island arcs form in the Pacific Ocean?
Wow, you really know your stuff! / Sorry, we were looking for...
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10
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What are dormant and extinct volcanoes?
"Asleep"; never observed to erupt.
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baam
Lose 25 points!
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gift
Win 5 points!
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fairy
Take points!
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25
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banana
Go to last place!
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10
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How many seismograph stations are required to determine the epicenter of an earthquake? Why?
Three; seismogrpahs measure time for wave to reach them, but lack directionality.
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10
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Other than magnitude, what metric of earthquakes do scientists measure? Using what scale?
Intensity; the Mercalli scale.
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baam
Lose 25 points!
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gift
Win 25 points!
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rocket
Go to first place!
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banana
Go to last place!
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10
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What is magnitude and in what units is it measured?
The measure of the energy released during an earthquake; the Richter scale.
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eraser
Reset score!
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shark
Other team loses 15 points!
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fairy
Take points!
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25
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lifesaver
Give 20 points!
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15
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What are dikes, laccoliths, and batholiths?
Magma hardened in vertical cracks across horizontal layers; dome-shaped cooled magma; large pockets of magma that reach deep into the crust.
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trap
No points!
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gold
Win 50 points!
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fairy
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25
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baam
Lose 5 points!
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