Weather

2. The transfer of heat by the movement of a fluid (like air or water).
4. The force exerted by the weight of air molecules on the Earth's surface.
6. A scientist who studies and forecasts the weather.
7. A severe snowstorm with high winds and low visibility.
10. A violently rotating column of air extending from a thunderstorm to the ground.
12. Water that falls to the Earth as rain, snow, sleet, or hail.
16. The process where liquid water turns into an invisible gas.
18. A tool used to measure wind speed.
19. The boundary between two different air masses.
20. Precipitation made of balls or lumps of ice.
21. ,A measure of the amount of water vapor in the air.
22. A tool used to measure air temperature.

1. The average weather conditions in an area over a long period of time.
3. The process where water vapor cools and turns back into liquid water.
5. A line on a weather map connecting places of equal air pressure.
7. An instrument used to measure atmospheric pressure.
8. The continuous movement of water on, above, and below the surface of the Earth.
9. A type of front that is not moving; it can cause clouds and precipitation for days.
11. The blanket of air and gases surrounding the Earth.
13. A large body of air with similar temperature and moisture characteristics.
14. The invisible gaseous form of water in the atmosphere.
15. The movement of air caused by differences in air pressure.
17. The temperature at which air is 100% saturated and condensation begins.