Across
- 7. is the layer of gases known as air
- 8. the core of the earth
- 11. occurs when forces act to stretch an object
- 12. first layer of the earth
- 14. comes from a Japanese word
- 15. Another word for gravity waves
Down
- 1. movement of the tectonic plates in the crust
- 2. the most rigid layer of the earth
- 3. earthquake scale
- 4. forms in the water when subduction occurs
- 5. occurs when something is squeezed
- 6. the first wave
- 9. happen when tectonic plates collide
- 10. is the bones found in the earth
- 13. a break in the earth's crust