Across
- 4. Layer of Earth that contains the asthenosphere
- 5. Volcano in the middle of a tectonic plate
- 8. Crack in the Earth's crust where movement happens
- 9. Mineral found in magma
- 10. Most dense layer of the Earth
- 11. How "thick" a substance is
- 13. Type of volcano that is steep and explosive
- 14. Fast-moving mix of hot gas and ash
- 18. Place on the surface above where an earthquake begins
- 20. One tectonic plate sliding under another
- 23. Hot molten rock inside the Earth
- 24. Liquid layer of the Earth
- 27. Wave that causes the most damage
- 29. Volcanic mudflow
- 30. Wave that can't travel through liquids
Down
- 1. Place where an earthquake begins
- 2. Ash and rock ejected from a volcano
- 3. Amount of mass per volume
- 6. Boundary where plates move parallel
- 7. How energy released in an earthquake travels
- 12. Divergent boundary in the Atlantic
- 14. Wave that can travel through liquids
- 15. Boundary where plates come together
- 16. Where convection currents happen
- 17. With the crust, makes up the tectonic plates
- 19. Rock that forms the ocean floor
- 21. Boundary where plates move apart
- 22. Rising and sinking caused by heating and cooling
- 25. Divergent boundary in East Africa
- 26. Hot molten rock on the Earth's surface
- 27. Type of volcano that is low and not explosive
- 28. The crater on the top of a volcano