Students from West High School Sioux City Iowa Geophysics Class board a stationary U.S. Air Force KC-135 Stratotanker. They visited they 185th Air Refueling Wing in Sioux City, Iowa as part a field trip to see how the U.S. Air Force incorporates STEM (Science Technology Engineering Math) into it everyday practices on Wednesday, September 12, 2019. U.S. Air National Guard Photo by Capt. Ramah Husidic