Across
- 3. when 2 plates slip past each other
- 7. a scientist that studies rock and earth's crust
- 8. the theory that the oldest rock is at the bottom and youngest on the top
- 10. the 2nd layer of earth
- 12. the theory that the continents drift apart
- 17. when plates move toward each other
- 18. a break in the rock of earth's crust or mantle
- 19. The shaking and trembling of a plate after it releases stress
Down
- 1. a structure that forms in earth's crust when magma reaches the earth's surface
- 2. An area of the mantle where hot rock rises upward
- 3. Earth's surface is broken up into more than a dozen distance plates
- 4. a natural force on earth that holds plates together
- 5. a natural formation formed at convergent boundaries
- 6. Most if not all the continent where conected and made a super continect
- 9. The type of thermal energy transfer that takes place in earth mantle
- 11. the force that acts on rock to change it's shape or volume
- 13. when 2 plates move away from each other
- 14. The name of the scientist that developed the theory of continental drift
- 15. a molten mixture of rock forming substances from the mantle
- 16. the remains of a prehistoric orgainsum that were presurved