To get energy from the wind, the wind has to blow fast enough. Measure wind speeds near your home or school by making a spinning anemometer. When does the wind blow fastest or slowest? Enter measurements online and compare them to wind speeds across the country.
Related Activites from How To Smile
Try out the related activities listed below from 24/7 Science and other sources. Be sure to visit Howtosmile.org to find even more science and math activities on the web!