Across
- 2. another word for lava
- 5. ____core, made up of liquid rock
- 8. caused by plate movement, shakes earth
- 11. ____core, made up of solid, compressed rock
- 13. Plate ____
- 14. ring of ____
- 15. a word for going under, such as one plate going under another
- 16. the number of years ago the theory of plate tectonics formed
- 17. Most plates are made up of a continent and a(n)
- 18. caused by plate movement, spew lava
- 19. Alfred ____
Down
- 1. in between asthenosphere and outer core
- 3. 19__, the year the theory of continental drift was conceived
- 4. outer layer of the earth
- 6. the way the continents seem to fit together
- 7. continental ____
- 9. Tectonic plates move over a layer of liquid
- 10. Supercontinent
- 12. similarities in this physical feature are found in the british isles and in north america
- 16. evidence of animals found in the ground