Across
- 5. small particle in the atmosphere around which water droplets can form
- 6. occurs when cloud droplets collide and join together to form a larger droplet
- 9. the layer closest to Earth's surface
- 12. layer in which the air temperature mainly increases with altitude and contains the ozone layer
- 13. can cover much or all of the sky in a given area
- 16. 50 to 85km above Earth's surface and air temperature decreases with altitude
- 17. occurs when an air mass is forced to rise over a topographic barrier
- 18. amount of water vapor in a volume of air relative to the amount of water vapor needed for that volume of air to reach saturation
- 19. all forms of water that fall from clouds to the ground
Down
- 1. transfer of thermal energy by movement of heated material from one place to another
- 2. the transfer of thermal energy by electromagnetic waves
- 3. an increase in temperature with height in an atmospheric layer
- 4. extra thermal energy contained in water vapor compared to liquid water
- 7. puffy, lumpy-looking clouds that usually occur below 2000m
- 8. often have wispy, indistinct appearance
- 9. layer between about 85 and 600km above Earth's surface / the low air density causes the temperature to rise
- 10. the outermost layer of Earth's atmosphere
- 11. when the amount of water vapor in a volume of air has reached the maximum amount
- 14. the transfer of thermal energy between objects when their atoms or molecules collide
- 15. the amount of water vapor in the atmosphere at a given location on Earth's surface