Across
- 5. surrounding area of the core
- 7. San andrea's is built on this
- 10. harry hess discovered this theory
- 13. where 2 tectonic plates split
- 14. this is when pressure builds up and squeezes
- 15. the thinnest layer of the earth
- 16. a place where a plate sinks and one rises
- 17. the layer below the crust
Down
- 1. this boundary is responsible for all of California's earthquakes
- 2. another word for crust
- 3. these things make mountains
- 4. the middle of the earth
- 6. where 2 plate come together
- 8. propeerties
- 9. to buildsomething
- 11. this is the interior part of the core
- 12. Alfred wegner discovered this theory