Rock Cycle

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. A colorless odorless gaseous element that give a red glow in a vacuum tube (4)
  2. 5. An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous ___ (6)
  3. 6. Produced by the action of water (11)
  4. 8. A sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals (9)
  5. 10. A slowly moving mass of ice (plural) (8)
  6. 15. Plutonic igneous rock having visibly crystalline texture (7)
  7. 16. A very light colorless element that is one of the six inert gasses (6)

Down

  1. 1. The breakdown or alteration of rock at or near the surface of the Earth. (10)
  2. 2. A sedimentary rock consisting of sand consolidated with some cement (9)
  3. 4. A light soft silver-white metallic element of the alkali metal group (9)
  4. 7. Gas in the air that we need to breathe (6)
  5. 9. A common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas (8)
  6. 11. Produced under conditions involving intense heat (7)
  7. 12. An abundant tasteless odorless multivalent nonmetallic element (7)
  8. 13. A soft whitish calcite (5)
  9. 14. The planet we live on (5)