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Plate Tectonics

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Across
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The rising of portions of the Earth's surface
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phenomena associated with volcanic activity
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depression in the ground caused by the Earth's crust spreading apart.
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geologist who uses physical principles to study the properties of the earth
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Molten rock in the earth's crust
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tectonic plate found beneath continents.
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area where two or more tectonic plates bump into each other. Also called a collision zone.
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layer in Earth's mantle between the lithosphere (above) and the upper mantle (below).
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middle layer of the Earth, made of mostly solid rock.
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Where we live
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process of covering the earth with glaciers or masses of ice
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a large continuous extent of land
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movement of the edge of one tectonic plate under another
Down
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method of determining the presence and location of an object using sound waves (echolocation).
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Large cracks in rocks that allows them to slide
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rock that in its molten form issues from volcanos
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area where two or more tectonic plates are moving away from each other. Also called an extensional boundary.
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underwater mountain range.
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outer, solid portion of the Earth. Also called the geosphere.
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movement and interaction of the Earth's plates.
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Liquid part that makes up the earth
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process of one tectonic plate melting, sliding, or falling beneath another.
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Shock waves that go through the earth
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a specialist in the history of the Earth recorded in rocks
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having to do with the ocean.
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intensely hot region deep within the Earth that rises to just underneath the surface. Some hot spots produce volcanoes.