atmosphere

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Across
  1. 6. forms a protective layer around the planet
  2. 9. keep earth warm at night and cool during the day
  3. 11. layer of the stratosphere that is closest to the ground
  4. 12. layer layer of the stratosphere with a high concentration of ozone
  5. 15. waves how energy travels from the sun to the earth
  6. 16. protects earth from gamma and x-ray radiation
  7. 17. substance heats up and gets less dense
  8. 18. above 80 km and extends to space
Down
  1. 1. the ozone layer is located here
  2. 2. thermal energy traveling in waves or rays
  3. 3. stream narrow belt of strong winds
  4. 4. a layer of electrically charged particles in the thermosphere
  5. 5. light reflecting off a particle and going in all directions
  6. 7. group of chemical compounds used refrigerators,air conditioners, ECT
  7. 8. contains the lower portion of the ionosphere
  8. 10. thermal energy going through a material by touch
  9. 13. outer most layer of the atmosphere
  10. 14. radiation a type of energy that comes to the earth from the sun