P.2 Word Scramble
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Question | Answer |
Lithosphere | A rigid layer made up of the uppermost part of the mantle and crust. |
Athenosphere | The soft layer of the mantle on which the lithopshere floats. |
Convection Current | The movement of a fluid,caused by differences in tempature, that transfers heat from one part of the fluid to another. |
Conduction | The transfer of heat within a material or between materials that are touching? |
Convection | The transfer of heat by movement of a fluid. |
Continental Drift | The hypothesis that the contninents slowly move across Earth's surface. |
Pangaea | The single landmass that broke apart 200 million years ago and gave rise to today's continents. |
Fossil | A trace of an ancient organism that has been perserved in rock. |
Mid-Ocean Ridge | An undersea mountain chain where new ocean floor is produced; a divergent plate boundary. |
Sea-Floor Spreading | The process by which molten material adds new oceanic crust to the ocean floor. |
Deep- Ocean Trench. | A deep valley along the ocean floor beneath which oceaninc crust slowly sinks towards the mantle. |
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Luray22499
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