Tectonic Plates
Across
- 2. the solid top layer of earth
- 4. scientific theory about the constantly changing surface of the Earth is called plate___
- 7. what tectonic plate do we live on in the United States?
- 9. the solid top layer of Earth floats on this melted layer underneath
- 12. another word for crust
- 13. when all the continents were together
- 14. the largest tectonic plate
- 16. what most tectonic plates are made of
- 17. the last name of the person who discovered continental drift
- 18. plate in Europe
- 20. number of minor tectonic plates
Down
- 1. plate in Africa
- 2. when two plates mash together it is called a convergent____
- 3. the lithosphere is _____into pieces
- 5. plate in Australia
- 6. when the continents slowly moved over time it is called continental___
- 8. two plates that slide past each other form this type of boundary
- 10. convergent collision forms this sometimes
- 11. boundary forms when two plates move away from each other
- 15. melted rock in the asthenosphere
- 19. number of major tectonic plates