Boundaries

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Across
  1. 1. Area of volcanic activity
  2. 4. New igneous rock forms
  3. 6. Wave of energy that travels away from the center of the earth
  4. 7. Two tectonic plates collide
  5. 8. Break or crack
  6. 10. Shaking that occurs
  7. 11. A crack that forms between tectonic plates
  8. 12. A string of volcanoes
Down
  1. 2. One plate slides under another
  2. 3. Underwater mountain range
  3. 5. boundary Two tectonic plates divide
  4. 9. boundary Two tectonic plates slide