EXPLORING PLATE TECTONICS

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Across
  1. 3. zone region where an oceanic plate sinks down into the asthenosphere
  2. 6. boundary of two tectonic plates where the plates move towards each other.
  3. 7. A boundary of two tectonic plates where the plates move away from each other.
  4. 8. a break in the Earth's crust along which two blocks of the crust slide relative to one another
  5. 14. the type of stress that occurs when forces act to stretch an object
  6. 15. Slowly moving pieces of Earth’s crust.
  7. 17. vibration from underground movement along a fault plane
  8. 18. the outermost, rigid layer of the Earth that consists of the crust and the rigid upper part of the mantle
Down
  1. 1. two tectonic plates slowly crash into each other and form mountains
  2. 2. drift hypothesis that the continents slowly move across Earth's surface
  3. 3. scientist who studies earthquakes.
  4. 4. credited with the theory of Continental Drift
  5. 5. the name given to the super continent
  6. 6. caused by warm fluids rising and cooler fluids sinking.
  7. 9. soft layer of the mantle
  8. 10. This is the layer we walk on.
  9. 11. any trace of an ancient organism that has been preserved in rock
  10. 12. layer between the crust and the core
  11. 13. the result of a force distributed over an area
  12. 16. boundary of two tectonic plates where the plates slide past each other.