Science Vocabulary

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Across
  1. 7. cycle of heating, rising, cooling, and sinking
  2. 8. plasticlike layer of the Earth's surface below the lithosphere
  3. 9. sections of the lithosphere
  4. 11. boundary between two plates that are moving apart
  5. 12. plate boundary that forms when two plates slide past each other
  6. 13. area where an oceanic plate goes does into the mantle
Down
  1. 1. The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle
  2. 2. trenches .any long, narrow, steep-sided depression in the ocean bottom
  3. 3. place where two plates move together
  4. 4. outermost layer of the Earth
  5. 5. rigid layer of Earth's surface made up of the crust and part of the upper mantle
  6. 6. hypothesis that the continents have moved slowly to their current locations
  7. 10. Ridge the undersea mountain chain where new ocean floor is produced; a divergent plate boundary
  8. 13. Spreading the process by which molten material adds new oceanic crust to the ocean floor