Across
- 3. Least dense layer
- 4. second mechanical layer
- 7. Degree or intensity of heat
- 10. solid liquid gas
- 12. p wave
- 14. s wave
- 15. first mechanical layer
- 16. wave produced by earthquake
- 18. very dense layer
- 19. Created the planets
Down
- 1. layer of gas on earth
- 2. liquid layer
- 5. instrument that records earthquakes
- 6. force applied to an object
- 8. Second least dense layer
- 9. third mechanical layer
- 11. force that keeps objects on earth
- 13. Most dense mechanical layer
- 16. record produced from seismograph
- 17. compactness of a substance