Across
- 4. freshwater reptile fossils found in South America and Africa
- 6. rocks formed when molten lava hardens quickly after an eruption underwater
- 7. continents moving slowly across Earths surface
- 8. mirrored pattern on both of the sides of the mid-ocean ridge that spread apart
- 9. any trace of an ancient living organism that's preserved in rock
- 11. plates colliding into one another
- 12. oceanic crust bending downward allowing part of the ocean floor to sink back into the mantle
- 13. occurs when the divergent boundary of continental to continental takes place
- 14. plates moving away from one another
- 15. ocean floor sinking beneath a deep ocean trench and back into the mantle
- 16. fern like fossil found in South America, Africa, India, Antarctica, and Australia
- 17. plates sliding past one another
- 19. occurs when the divergent boundary of continental to oceanic takes place
- 20. device that used waves to measure distance to an object
Down
- 1. seams forming mountain ranges that rise up from the ocean floor
- 2. famous examples of a transform boundary
- 3. scientist who names the large landmass Pangaea
- 5. adding materials to the ocean floor forming a crack in the ocean
- 10. freshwater reptile fossils found in Africa, Asia, Antarctica, and India
- 18. name of the super continent