Across
- 3. An instrument used to measure wind speed.
- 5. An instrument used to measure air pressure.
- 7. Water vapor in the air.
- 8. High altitude clouds; made of ice crystals
- 10. Contains most of the atmosphere's ozone.
- 11. All the particles of air pressing down on the surface of the earth
- 13. The atmosphere traps heat much like a greenhouse.
Down
- 1. An instrument used to measure water vapor in the air.
- 2. Lines drawn to connect areas out of the same atmospheric temperature.
- 3. The layer of air that surrounds our planet.
- 4. Large body of air that forms over a land mass or large body of water.
- 6. Towering dark clouds; rain on it's way.
- 9. Instrument used to measure precipitation.
- 10. Low layer clouds; dark; sometimes bring light rain.
- 12. Layer closest to the earth; almost all weather happens here.
- 14. The border where 2 air masses meet.
- 15. Puffy cottonball clouds; seen on a clear, warm, day.