cordero_Plate tectonics
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15 terms
Terms | Definitions |
|---|---|
 convection current | a current caused by the rising of heated fluid and sinking of cooled fluid |
| theory of plate tectonics | theory that the crust is made of sections of the Earth's crust and upper mantle that move due to convection currents |
| divergent plate boundary | where two plates are moving apart, magma comes up to create new crust |
| convergent plate boundary | A tectonic plate boundary where two plates collide, come together, or crash into each other. |
| transform plate boundary | Boundary between two plates that are sliding past each other. |
| mantle | layer between the outer core and the crust |
| inner core | solid, dense center of the Earth, the solid iron layer of earth |
| outer core | liquid layer of the Earth's core |
| Earth's crust | IS THE OUTER LAYER OF THE EARTH. IT IS A RELATIVELY THIN LAYER OF ROCK THAT COATS THE EARTH. |
| continental drift | theory that states that there was a supercontinent that split into the continents of today |
| mid-ocean ridge | Underwater mountains that have a deep crack running through their center where new seafloor is produced |
| volcano | an opening in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt |
| earthquake | a shaking or sliding of the ground. It is caused by the sudden movement of masses of rock along a fault or by changes in the size and shape of masses of rock far beneath the earth's surface. |
| fossil | the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock |
| lithosphere | the solid part of the earth consisting of the crust and upper mantle |
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