g6.7.Atmosphere_Sec.3-4_xword

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Across
  1. 3. includes all the colors that you see in the rainbow
  2. 10. lower layer of the thermosphere
  3. 12. outer portion of the thermosphere
  4. 13. invisible form of energy with wavelengths shorter than violet light
  5. 14. energy that can move through the vacuum of space
  6. 17. dust particles and gases in the atmosphere reflect light in all directions
  7. 19. envelope of gases that surrounds the Earth
Down
  1. 1. the three-atom form of oxygen
  2. 2. direct transfer of energy by electromagnetic waves
  3. 4. energy that has a wavelength lower than red light
  4. 5. process which gases hold heat in the air
  5. 6. outermost layer of Earth’s atmosphere
  6. 7. second layer of the atmosphere and contains the ozone layer
  7. 8. layer of the atmosphere in which Earth’s weather occurs
  8. 9. also called the Northern Lights
  9. 11. the first letters of the colors of the rainbow
  10. 15. average amount of energy of motion of each molecule of a substance
  11. 16. referring to the sun
  12. 18. layer of the atmosphere that protects Earth’s surface from being hit by most meteoroids