This passage of air is known as wind. If you are from an area of the country such as the midwest that has a lot of tornadoes, or the south that experiences a great many hurricanes, it is easy to think of the negative effects of wind. High winds have flattened entire sections of cities, swept up homes, and torn down bridges. But winds have positive effects as well. Think about a cool breeze on a hot summer night, or flying a kite on a windy, March day.
Winds are one of humankind's oldest sources of energy.
Many communities now use wind to produce electricity through the use of large windmill farms that provide power for electric generators. Such farms may include hundreds of windmills or one very big windmill, such as the one in Medicine Bow, Wyoming. This windmill provides enough electricity to supply electricity to 1,200 homes. Air 01 - Students will describe the characteristics and uses of air. A special treat is root beer made from the sinking gases formed from dry ice.