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6th Grade: Earthquakes and Volcanoes

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Across
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A vent that allows molten rock and hot gases to escape from within the earth
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The most famous scale used to measure an earthquake
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Smaller earthquakes or tremors that happen after a large earthquake
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The strength of an earthquake
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Magma that is thin and runny in liquid form
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The most famous fault in California
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Any trembling or shaking of the earth's crust
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The point underground where an earthquake begins
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A weak earthquake
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The study of earthquakes
Down
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Melted rock that is stored underground
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The smallest fragments of tephra; usually resemble fine dust or sand
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The belt where 80% of all earthquakes occur
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The belt where one fourth of the active volcanoes are located
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Holes or cracks that serve as escape vents for underground gases
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Regions where earthquakes occur
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Large waves caused by an underwater earthquake
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Solid magma fragments
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The place at ground level that is directly above the focus
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The break that appears between two moving masses of rock