Convection/Plate Tectonics

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Across
  1. 3. The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.
  2. 5. A plate boundary where two plates move toward each other.
  3. 6. A plate boundary where two plates move away from each other.
  4. 8. The process by which molten material adds new oceanic crust to the ocean floor
  5. 9. the study of changes in Earth's magnetic field, as shown by patterns of magnetism in rocks that have formed over time
  6. 11. A deep valley that forms where two plates move apart
Down
  1. 1. The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.
  2. 2. A plate boundary where two plates move past each other in opposite directions
  3. 4. The hypothesis that the continents slowly move across Earth's surface.
  4. 6. a deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle
  5. 7. the movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another
  6. 10. The name of the single landmass that broke apart 200 million years ago and gave rise to today's continents