Science choice board crossword

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Across
  1. 4. earths surface directly above an earthquakes focus
  2. 5. a sea floor mountain system built by plate tectonics
  3. 8. when magma has less silica and is less viscose
  4. 9. when plates move earths surface changes very...
  5. 10. what rock is formed when heat and pressure happens to sedimentary rock
  6. 13. what causes tectonic plates to move
  7. 14. when one plate gets pulled under another
  8. 15. when magma has more silica it is more viscose and...
Down
  1. 1. what occurs when a transform boundary happens
  2. 2. what type of boundary occurs when plates move away from each other
  3. 3. device used to record an earthquakes seismic waves
  4. 6. what type of boundary occurs when plates grind past each other
  5. 7. what type of boundary occurs when plates move towards each other
  6. 10. what forms when two continental plates collide
  7. 11. An ancient super continent containing all the earths landmass
  8. 12. rock is not destroyed but it is...