Plate Tectonics
Across
- 2. happens when divergent boundary occur(land)
- 5. an area where a large number of earthquakes and volcanic eruptions occur in the basin of the pacific ocean
- 8. where 2 plates slide past each other
- 11. Theory by J. Tuzo Wilson
- 16. where 2 plates collide
- 19. single landmass or supercontinent
- 20. rocks that make up the ocean floor lies in patterns of this
Down
- 1. convection currrents under the lithosphere push new crust that forms at the mid-ocean ridge away from the ridge and towrd this
- 3. happens when transform boundary occur
- 4. happens when collision boundary occur
- 6. any trace of an ancient organism that has been preserved in rock
- 7. the rigid, rocky outer surface of the Earth
- 9. break in Earth's crust where rocks have slipped past each other
- 10. where 2 plates move away
- 12. Crust broken up into
- 13. Theory by Alfred Wegener
- 14. under the Athenosphere
- 15. Theory by Harry Hess
- 17. device that bounces sound waves off underwater objects than back
- 18. a fern like plant