Science
Terms
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- Tectonic Plates
- A block of Lithosphere that consists of the crust and the rigid outermost part of the mantle.
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- Section 2
- Mantle
- The layer of rock between the Earth's crust and core.
- Deformation
- The bending, tiltig, and breaking of the Earth's crust; the change in the shape of rock in fesponse to stress
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- Section 4
- Fault
- A break in a body of rock along which one block slides relative to another.
- Continental Drift
- The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations.
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- Section 3
- Crust
- The thin and solid outermost layer of the Earth above the mantle.
- Divergent Boundary
- The boundary between two tectonic plates that are moving away from each other.
- Convergent Boundary
- The boundary formed by the collision of two lithosphere plates.
- S Wave
- A seismic wave that causes particles of rock to move in a side-to-side direction
- Compression
- Stress that occurs when forces act to squeeze an object.
- Core
- The central partof the Earth below the mantle.
- Mesosphere
- The strong, lower part of the mantle between the Asthenosphere and the outer core.
- Seismic Wave
- A wave of energy that travels through the Earth and away from an Earthquake in all directions.
- Tension
- Stress that occurs when forces act to stretch an object.
- Seismic Wave
- A wave of energy that travels through the Earth and away from an Earthquake in all directions.
- Uplift
- The rising of regions of the Earth's crust to higher elevations.
- Plate Tectonics
- The theory that explains how large pieces of the lithosphere, called plates, move and change shape.
- P Wave
- A seismic wave that causes particles of rock to move in a back-and-firth direction
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- Section 1
- Seismology
- The study of earthquakes
- Lithosphere
- The solid, outer layer of the Earth that consists of the crust and the rigid upper part of the mantle.
- Subsidence
- The sinking of regions of the Earth's cust to lower elevations.
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- Section 5
- Folding
- The bending of rock layers due to stress.
- Transform Boundary
- The boundary between tectonic plates that are sliding past each other horizontally.
- Sea-floor Spreading
- The process by which new oceanic lthosphere (sea floor) forms as magma rises to Earth's surface and solidifies at a mid-ocean ridge.
- Elastic Rebound
- te sudden return of elastically deformed rock to its undeformed shape
- Asthenosphere
- The soft layer of the mantle on which the tectonic plates move.