Across
- 2. A tool used to measure the size of seismic waves
- 3. Outermost layer of the earth
- 4. A wave that travels through Earth's interior
- 5. between the Earth's crust and core
- 6. The sudden shaking of Earth's surface
- 9. A wave that travels on earth surface
- 10. surrounds the inner core of earth
Down
- 1. where tectonic plates are found
- 4. more dense material sink less dense materials rise
- 7. A form of energy that travels through the earth
- 8. center of earth