Across
- 3. used to measure wind speed
- 4. occur when water vapor in a cloud changes directly into ice crystals
- 5. person who studies weather patterns in an attempt to predict the weather
- 6. occur when raindrops freeze AFTER THEY HIT EARTH'S SURFACE when they touch something cold
- 10. ANY form of water that falls from clouds and reaches the Earth's surface
- 11. the condition of outside air at a certain time and place
- 12. drops of water that are at least 0.5 millimeters
- 14. huge body of air that has similar temperature, humidity, and air pressure at any given height
- 15. the weather of a certain area of a long period of time
- 16. air mass that forms over land in the tropics
- 18. used to measure wind direction
- 21. air mass that forms over water in polar regions
Down
- 1. air masses are classified according to humidity and __________
- 2. _____ pressure systems produce clouds, precipitation, and other bad weather
- 4. occur when raindrops freeze IN THE AIR as they fall to the Earth's surface
- 5. air mass that forms over water in the tropics
- 7. _____ pressure systems produce clear skies and calm weather
- 8. invented the thermometer
- 9. air mass that forms over land in polar regions
- 13. invented the barometer
- 17. used to measure the temperature of the air
- 19. _____ forms inside a cold region of a cumulonimbus clouds during thunderstorms and when they get too heavy for the cloud to hold they fall to Earth
- 20. used to measure air pressure