Across
- 2. energy from the sun
- 4. warming that results when solar radiation is trapped by the atmosphere
- 5. layer of the atmosphere that is the coldest
- 8. 2nd layer of atmosphere
- 9. water contained in places such as lakes, ponds, rivers, streams, and reservoirs
- 11. layer of the atmosphere in which Earth's weather occurs and all life exists
- 12. Protective layer in atmosphere that shields earth from UV radiation
- 16. layer of the atmosphere that is the hottest
- 17. last layer of the atmosphere that extends out into outer space
- 18. process in which the sun's heat turns liquid water into water vapor
- 19. process in which water moves from the oceans to the air to the ground and finally back to the oceans
- 21. the forming of tiny droplets of water as water vapor cools
- 23. A gradual increase in average global temperature
Down
- 1. water found beneath Earth's surface
- 3. the falling to earth of any form of water (rain or snow or hail or sleet or mist)
- 6. A gas produced by bacteria from hydrogen and carbon dioxide
- 7. Gases in Earth's atmosphere that trap heat near the surface
- 10. the layer of gases that surround the planet
- 13. Water that flows across the land and enters rivers and streams. It eventually flows into lakes and the ocean.
- 14. the gas formed when water evaporates
- 15. damaging rays from the sun
- 20. air becomes less dense and gets thinner and thinner as you move away from Earth's surface
- 22. one of the most common gases in Earth's Atmosphere