The Google Wind Challenge and STEM Fair takes place Saturday at the Fort Dalles Readiness Center. In the Challenge, 39 teams of high school and middle school students from around the region race against the clock in an all-day competition to design and build the strongest and fastest wind turbine. In addition, Jessica Metta of the Gorge Technology Alliance says the STEM Fair that runs concurrent with the Challenge gives students of all ages a chance to take part in hands-on activities. The Wind Challenge runs from 8 a.m. to 3 p.m. Saturday while the STEM Fair will be from 11 a.m. to 3 p.m. in the Fort Dalles Readiness Center.