Plate tectonics
Across
- 3. plates spread apart from each other
- 6. reversal\shown by sea floor spreading
- 10. mountains/feature forms with a converget collision
- 11. and earthquake/ recorded over history
- 12. a type of rock that forms on Icelands boundry
- 13. that is surrounded by half divergent and half converget
- 14. rest on
- 18. of rocks/recorded by radioactive dating processes
- 19. Andres fault/ example of a transform boundry
- 20. a feature form with in a transform boundry causeing a crack in the earths surface
Down
- 1. collision/when two continental plates come together
- 2. ocean ridge/ a feature formes with divergetn boundry that caused the Mid Atlantic ridge
- 4. two plates slide past each other
- 5. color of the oldest land
- 7. are plates located
- 8. type of crust made from granite
- 9. currents/in the mantle force the plates to move in a predictable motion
- 15. of crust made from basalt
- 16. example of a folded mountain
- 17. eath crust is made up of moving plates