Earth's atmosphere

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 6. A heavy odorless colorless gas formed during respiration and by the decomposition of organic (13)
  2. 7. A colorless odorless gas used as a fuel (7)
  3. 8. Layer of air around the Earth (10)
  4. 9. The watery layer of the earth's surface (11)
  5. 10. The outermost atmospheric layer (9)
  6. 11. The solid part of the earth consisting of the crust and outer mantle (11)
  7. 12. Clear liquid we drink that falls as rain (5)
  8. 13. A common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas (8)

Down

  1. 1. The lowest atmospheric layer (11)
  2. 2. A water solution of ___ (7)
  3. 3. The atmospheric layer between the troposphere and the mesosphere (12)
  4. 4. The atmospheric layer between the mesosphere and the exosphere (12)
  5. 5. A relatively thin sheetlike expanse or region lying over or under another (plural) (6)