Across
- 1. The amount of water vapor in the air
- 3. A heap, mass, and pile cloud
- 5. Water that falls from the sky
- 8. The temperature to which the air must cool for it to become completely saturated with water
- 10. An overflowing of a large amount of water beyond its normal amount
- 11. Solid ice that forms inside thunderstorms
- 12. Water that collects as droplets on a cold surface when humid air is in contact with it
- 13. An instrument to measure wind
- 15. An instrument that measures the temperature
- 17. Forms 21 percent of the atmosphere
- 19. A mixture of snow and rain
- 20. A process when a liquid turns into a gas
Down
- 2. A storm with thunder, lightning, heavy rain, and hail
- 4. An instrument to measure air pressure and show when the weather changes
- 6. Forms 78 percent of the atmosphere
- 7. A storm with high winds, intense cold, and heavy snow
- 9. A natural movement of air
- 11. An instrument that measures humidity in the air
- 12. cloud-forming wispy, filamentous, and tufted streaks
- 14. Flat, grey, and white cloud
- 16. A device for collecting and measuring the amount of rain that falls
- 18. A cloud close to the ground
- 19. Falling to the ground as light white flakes