Earth's Atmosphere

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Across
  1. 4. The lowest layer of Earth's atmosphere (rain, snow, storms, and most clouds occur here)
  2. 5. An instrument that measures atmospheric pressure
  3. 7. The continuous process by which water moves from Earth's surface to the atmosphere and back
  4. 11. The weight of a column of air pushing down on an area
  5. 15. The layer that protects us from the Sun's harmful UV rays
  6. 18. A mass of sinking cool air that usually brings fair weather.
  7. 19. When two air masses meet
  8. 20. A body of air that has about the same temperature and moisture throughout
  9. 21. water in the form of a gas
  10. 22. When water heats up and changes from water to gas which is known as water vapor
Down
  1. 1. The 4th layer of Earth's atmosphere; the hottest layer
  2. 2. A mass of rising warm air that usually brings wet, stormy weather.
  3. 3. The condition of Earth's atmosphere at a particular time and place.
  4. 6. The 3rd layer of the atmosphere(50 to 80 km, most meteorites burn up here)
  5. 8. Overall weather in an area over a long period of time
  6. 9. The second-lowest layer of Earth's atmosphere (The ozone layer that absorbs ultraviolet radiations)
  7. 10. A measure of the mount of water vapor in the air
  8. 11. The envelope of gases surrounding the earth or another planet.
  9. 12. when water moves across the land surface into streams and rivers, eventually reaching the ocean
  10. 13. When water vapor is cooled in the atmosphere and changes back to water to form a cloud
  11. 14. Any form of water that falls from clouds and reaches Earth's surface (rain, snow, hail, etc)
  12. 16. The outer layer of the atmosphere, extending outward into space.
  13. 17. Similar to evaporation, water is changed to gas but from plants