Earth Cience Crossword

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 5. The transmission of heat or electricity or sound (10)
  2. 6. The planet we live on (5)
  3. 7. The process of becoming a vapor (11)
  4. 8. The act of conducting a controlled test or investigation (10)
  5. 10. Study of the natural world through experiments (7)
  6. 14. The lowest atmospheric layer (11)
  7. 15. The atmospheric layer between the mesosphere and the exosphere (12)
  8. 16. An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous ___ (6)

Down

  1. 1. A proposal intended to explain certain facts or observations (10)
  2. 2. A common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas (8)
  3. 3. The atmospheric layer between the troposphere and the mesosphere (12)
  4. 4. Underground ___ that is held in the soil and in pervious rocks (11)
  5. 9. Energy that travels in waves or particles (9)
  6. 11. The transfer of heat through a fluid caused by molecular motion (10)
  7. 12. The atmospheric layer between the stratosphere and the thermosphere (10)
  8. 13. The outer region of the Earth's atmosphere (10)