Introduction to volcanoes and earthquakes – key words
Identify the key term: a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapour, and gas are or have been erupted from the earth's crust.
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Identify the key term: a sudden violent shaking of the ground, typically causing great destruction, as a result of movements within the earth's crust or volcanic action.
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Identify the key term: a conical volcano built up by many layers (strata) of hardened lava, tephra, pumice and ash.
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Identify the key term: a broad domed volcano with gently sloping sides, characteristic of the eruption of fluid, basaltic lava.
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Identify the key term: hot fluid or semi-fluid material below or within the earth's crust
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Identify the key term: hot molten or semi-fluid rock erupted from a volcano or fissure.
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Identify the key term: the edges where two plates meet.
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Identify the key term: the point on the earth's surface vertically above the point where an earthquake occurs.
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Identify the key term: the point of origin of an earthquake.
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Identify the key term: the innermost geologic layer of the planet Earth, made up of solid iron and nickle.
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Identify the key term: Earth's outer core is a fluid layer about 2,400 km (1,500 mi) thick and composed of mostly iron and nickel.
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Identify the key term: the mostly-solid bulk of Earth's interior. The mantle is about 2,900 kilometers (1,802 miles) thick and makes up a whopping 84% of Earth’s total volume.
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Identify the key term: a thin shell on the outside of Earth
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Identify the key term: a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.
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Identify the key term: Where two areas of continental crust move towards each other, causing the crust to fold andcreate fold mountains.
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Identify the key term: where two tectonic plates slide past each other.
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Identify the key term: where an area of oceanic crust moves toward an area of continental crust.
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Identify the key term: where two tectonic plates move away from each other.
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Identify the key term: the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
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Identify the key term: the heat that comes from the sub-surface of the Earth.
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Introduction to volcanoes and earthquakes – key words
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