Across
- 4. - the lithosphere is divided into...
- 9. - South America matches up with this continent.
- 11. - result of plate tectonics
- 15. - this piece of evidence explains why palm tree fossils have been found in very cold regions
- 16. - the Earth is made up of these and they are constantly moving along above the mantle.
- 17. - the Earth's crust is divided into plates that shift over time.
- 19. - the layer of Earth which is believed to be responsible for plate movement
- 20. - continents fit together like_______ pieces
Down
- 1. - when two plates move away from each other
- 2. - the outer most layer of earth
- 3. - the super continent was called
- 5. - the scientist who is generally credited with the continental drift theory
- 6. - an idea developed in the 20th century
- 7. - what is the liquid layer of Earth's core.
- 8. - what element makes up most of the Earth's core
- 10. - evidence of dead plants and animals
- 12. - type of boundary between two colliding plates
- 13. - result of plate tectonics
- 14. - scrapes across rocks where a glacier once was
- 18. -currents are found in the mantle and cause the tectonic plates to move