Earthquakes
Across
- 3. third layer of the earth
- 5. innermost layer of the earth
- 8. primary wave that travels back and fourth through the earth
- 9. controls plate tectonics
- 10. tectonic plates slide
- 11. second layer of the earth
- 12. supercontenint about 225 million years ago
Down
- 1. secondary wave that travels in a snake like shape
- 2. divide
- 4. collide
- 6. outermost layer of the earth
- 7. where earthquake and volcanoes occur most