Across
- 1. Top of a mountain
- 6. Large volcanic collapse basin
- 7. Highest point of a mountain
- 8. Cracked region where plates pull apart
- 10. Elevated flat landform
- 11. Large natural elevation of Earth’s surface
- 12. Fracture in Earth’s crust
- 15. Narrow, steep-sided valley
- 17. Molten rock from Earth’s interior
- 18. Raised land lower than a mountain
Down
- 2. Molten rock beneath the surface
- 3. Long narrow elevation of land
- 4. Low area where water collects
- 5. Sudden ground shaking
- 6. Bowl-shaped volcanic depression
- 7. Broad area of flat or gently rolling land
- 9. Deep valley with steep sides
- 13. Deep ocean-floor depression
- 14. Mountain formed by lava and ash
- 16. Low area between hills or mountains