The Techtonic Plates

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Across
  1. 3. current- where heat rises and cold air descends
  2. 9. the upper mantle and crust
  3. 10. Andreas fault- lots of earthquakes happen here
  4. 12. ridge an underwater mountain chain
  5. 13. when all the continents separated
  6. 15. a ring of volcanos
  7. 18. when two plate boundaries slide against each other and cause an earthquake
  8. 19. the solid\liquid stuff that the outer core is made of
Down
  1. 1. the crust below the ocean
  2. 2. the crust that makes up the land
  3. 4. - when one plate boundary slides under another
  4. 5. when two plate boundaries slide together and form mountains
  5. 6. the theory that all continents drifted apart
  6. 7. where 2 plate boundaries separate and a fault is formed
  7. 8. the remains of an animal that was alive millions of years ago
  8. 11. the person who created the pangea theory
  9. 14. the boundary between two tectonic plates
  10. 16. spreading- when the plate boundary splits apart, causing new seafloor
  11. 17. convergent boundaries slide together causing a __________