Mass Movement

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. A landslide of ___ (9)
  2. 9. The tangible substance that goes into the makeup of a physical object (8)
  3. 11. All the plant life in a particular region or period (10)
  4. 13. A slide of large masses of snow and ice and mud down a mountain (9)
  5. 14. An elevated geological formation (5)
  6. 15. The extraction of building stone or slate from an open surface ___ (9)
  7. 16. The state of being clear of trees (13)

Down

  1. 1. A sloping mass of loose rocks at the base of a cliff (5)
  2. 2. A republic in northwestern South America with a coastline on the Pacific Ocean and the Caribbean Sea (8)
  3. 4. The act of ___ something (12)
  4. 5. Shaking and vibration at the surface of the ___ resulting from underground movement along a fault (10)
  5. 6. Lever that activates the firing mechanism of a gun (7)
  6. 7. A slide of a large mass of dirt and rock down a mountain or cliff (plural) (10)
  7. 8. An avalanche of volcanic water and mud down the slopes of a volcano (plural) (6)
  8. 10. Force that pulls objects toward the Earth (7)
  9. 12. Clear liquid we drink that falls as rain (5)