Across
- 2. the border between two tectonic plates
- 5. proposed by Alfred Wegener in the 1900s
- 8. increases the further in the layers you go
- 10. melted rock on earth's surface
- 11. mass/volume
- 14. made up of crust and upper mantle
- 15. existed 245 million years ago
- 16. made up of nickel and iron
- 18. often caused by transform boundaries
- 19. plates on land
Down
- 1. boundary that comes together
- 3. one plate goes under another
- 4. makes up 82% of the earth's volume
- 6. boundary that slides past each other
- 7. boundary that pulls apart
- 9. created Hawaii and Yellowstone
- 12. type of formation with divergence
- 13. lithosphere parts that move
- 17. plates in the ocean
- 19. thinnest layer of earth