Plate Tectonics Vocabulary

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Across
  1. 4. Plate ____________: the theory that the Earth's crust and part of the upper mantle are broken into parts, called plates, that move on top of the mantle
  2. 5. Continental ___________: the hypothesis that states that the continents have moved slowly to their current locations
  3. 6. molten material that has come out of a volcano
  4. 7. the instrument that records earthquake data
  5. 8. Molten material inside the Earth
  6. 11. the location directly above the focus of an earthquake where the most damage occurs
  7. 13. A section of the Earth's crust and upper mantle
  8. 14. ________________ currents: the cycle of heating, rising, cooling and sinking which propels plate movement
  9. 15. ________ scale: a scale that measures the magnitude of an earthquake from 1-10, with 10 being causing the most destruction
  10. 16. The sudden shaking of the ground along a fault that is the result of movement within the Earth's crust
  11. 17. The strength of an earthquake
Down
  1. 1. The point inside Earth's crust where an earthquake begins
  2. 2. The layer of the Earth that consist of the crust and the upper mantle
  3. 3. Seafloor ______________: the theory that continents are moving apart due to the movement of heat and less dense material along faults in the oceans/seas creating mid-ocean ridges and other under water features.
  4. 9. the plasticlike layer of earth below plates that allows for continental movement
  5. 10. The place where lava, ash and rock erupt from a volcano
  6. 12. Using seismograms from at least 3 different seismographs to determine the epicenter of an earthquake
  7. 13. The name of the landmass that existed when all continents were joined as one