Across
- 2. When air is heated and the particles move farther apart; brings precipitation
- 6. Water that falls from the clouds in the form of rain, snow, hail, or sleet
- 8. Feathery clouds which are high in the atmosphere and are associated with fair weather; they often indicate that rain and snow will fall within several hours
- 11. Violent, funnel-shaped storms of swirling wind
- 12. The use of weather instruments to predict future weather
- 15. Fluffy and white clouds with flat bottoms; they usually indicate fair weather
- 17. The measure of the amount of heat energy in the atmosphere
- 18. Large, puffy clouds with dark bottoms which can produce thunderstorms
- 19. The boundary between air masses of different temperature and humidity
- 21. Storms with heavy rain, strong winds, thunder, and lightning
- 22. An instrument used to measure the temperature of the air
- 23. Storms which form over warm ocean waters; they have large swirling clouds which contain heavy rain, very strong winds and can cause major damage
Down
- 1. An instrument which measures wind speed
- 3. The measure of the amount of moisture in the air
- 4. When air is cooled and the particles move closer together; brings clear and sunny weather
- 5. This pressure is due to the weight of the air pushing on the Earth and is determined by several factors including the temperature of the air
- 7. An instrument which measures air pressure
- 9. Smooth, gray clouds that cover the whole sky; they are low-level and bring light rain, drizzle, and ground fog
- 10. A mass of warmer air moving into an area
- 13. An instrument which measures the amount of precipitation in a certain area
- 14. A mass of cooler air moving into an area
- 16. The study of weather and weather patterns
- 20. The layers of gases surrounding the Earth