Across
- 1. front a warm, less dense air mass overtakes a cold, dense air mass causing cloudiness and rain/snow
- 5. air mass that forms near the earth's equator and is hot
- 8. polar air mass that forms over a very cold, dry land surface
- 10. caused when a cumulonimbus cloud, filled with positive and negative ions, has a great enough difference in charges to cause lightning and thunder
- 11. fronts two nonmoving air masses; can cause a gentle rain
- 14. air mass that forms near the North Pole and is extremely cold
- 15. Mass One of 6 different types of weather conditions in a given area: continental polar, continental tropical, maritime polar, maritime tropical, equatorial, and arctic
- 16. Instrument used to measure air pressure in the atmosphere
- 18. wind pattern Counterclockwise wind pattern that surrounds a low-pressure area, creating hurricanes and major winter storms
- 20. Lines on a weather map that connect points of equal atmospheric pressure
Down
- 2. a heavy, seasonal rainstorm, particularly in southern Asia
- 3. a violent, tropical storm with sustained winds of at least 120 km/h that forms over warm oceans near the equator
- 4. fronts a cold front overtakes a warm front causing rain
- 6. A mixture of gases that surrounds Earth, the moon, or other celestial bodies.
- 7. The boundary where two different air masses come together
- 9. wind pattern Air, rushing away from a high pressure center, creates a clockwise pattern, resulting in warm, sunny weather
- 12. lines on a weather map that connect locations that have, or are predicted to have, the same temperature
- 13. A whirling, funnel-shaped windstorm, with rotating winds of more than 50 km/h, that moves or skips on a narrow path along the ground
- 17. tropical air mass that forms over warm bodies of water; causes warm, humid weather often with thunderstorms
- 19. front a cold, dry air mass displaces a warm, moist air mass causing strong gusts of wind and rain