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