Inside the Earth Chapter 1 Forest Team
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Created by:
MarcyJPerry on January 30, 2012
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22 terms
Terms | Definitions |
|---|---|
 Fault | A break in the Earth's crust where slabs of rock slip past each other. (p.44, 56) |
| Granite | A usually light-colored rock that makes up most of the continental crust. (p. 20) |
| Wegner Theory | German scientist who theorized that the continents slowly moved over the Earth's surface based on similar animal and plant fossils found in South America and Africa. |
| Subduction | The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary. (p. 38) |
| Geologist | A scientist who studies the forces that make and shape planet earth. (p. 17) |
| Radiation | The transfer of heat through empty space. (p. 25) |
| Convection | The transfer of heat by movements within a heated fluid. (p.26) |
| Conduction | The transfer of heat through solid materials. (p. 26) |
| Molten Materials | Physical material that has been liquified from a solid state by heat. For example, melted rock (magma) from the Earth's mantle or lava from a volcano. |
| Transform Boundary | A plate boundary where two plates move or slip past each other in opposite directions. (p. 44) |
| Divergent Boundary | A plate boundary where two plates move apart or diverge from each other. (p.45) |
| Convergent Boundary | A plate boundary where two plates come together or converge resulting in a collision. (p. 46) |
| Sea-floor Spreading | The process by which molten material adds new oceanic crust to the ocean floor. (p. 35) |
| Plates | A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust. (p. 42) |
| Lithosphere | A rigid layer made up of the uppermost part of the mantle and the crust. (p. 20) |
| Asthenosphere | The soft layer of the mantle on which the lithosphere floats. (p. 21) |
| Continental Drift | The hypothesis that the continents slowly move across Earth's surface. (p. 29) |
| Constructive Forces | A force that builds up mountains and landmasses on Earth's surface. (p. 17) |
| Destructive Forces | A force that slowly wears away mountains and other features on the surface of Earth. (p. 17) |
| Pangea | The name of the single landmass that broke apart 200 million years ago and gave rise to today's continents. (p. 29) |
| Density | The amount of mass in a given space; mass per unit volume. (p. 26) |
| Sonar | A device that determines the distance of an object under water by recording echoes of sound waves. (p. 34) |
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