Hartcourt Earth's surface
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| What is Crust | layer of Earth we walk on
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| What is mantle | thickest layer of Earth made of solid rock
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| What is Core | deep inside Earth ball made of iron and nickel
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| What is plates | continent-sized slabs which move slowly
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| What is earthquake | vibration or shaking of Earth's crust
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| What is fault | break in the crust along which rock moves
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| What is focus | point underground where movement first took place
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| What is epicenter | point on the surface that is right above the the focus
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| What is seismograph | instrument that records earthquake waves
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| What causes an earthquake | plate movement
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| What is volcano | mountain that forms when red-hot melted rock flows through a crack onto earth's surface
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| What is magma | melted rock inside Earth
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| What is lava | Melted rock that reaches Earth's surface
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| What is vent | Magma flows onto the surface through a rocky opening
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| What are three types of volcanoes | Shield, Cinder cone and composite volcanoes
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| What is a magma chamber | Underground pool that holds hot magma
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| How can volcanic eruptions be harmful | Houses, crops, livestock and nearly everything is destroyed in the area
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Created by:
jflaherty
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