Across
- 4. What something is made up of
- 5. Outermost mechanical layer
- 9. Matter coming together under the influence of gravity
- 11. A substance or material through which energy can travel
- 13. A printout of vibrations caused by earthquakes
- 17. Sudden shaking of the ground
- 18. Energy waves created by earthquakes
- 19. Information facts or data supporting a claim or hypothesis
Down
- 1. Bending of waves as they travel through each material
- 2. The upper part of the mantle where convection currents occur
- 3. A scientist who specializes in the study of earthquakes
- 6. A theory that the lithosphere is split into plates that move over the asthenosphere
- 7. Second to hit the stations
- 8. The same throughout
- 10. All continents were joined 230 million years ago
- 12. First to hit seismic stations
- 14. An instrument that measures and records details of earthquakes
- 15. Come together to form one mass or whole
- 16. The compactness of a substance
- 18. The distance traveled in a certain amount of time