More than 200 middle school and high school students attend the annual Middle Tennessee STEM Innovation Hub Expo Wednesday, April 5, in the Middle Tennessee State University Student Union Ballroom. Students from schools in Rutherford, Davidson and Sumner counties can work individually or in teams of up to five students and present their STEM research at the expo, which is organized by the MTSU Tennessee STEM Education Center. (MTSU photo by J. Intintoli)

During the recent Middle Tennessee STEM Innovation Hub Expo in the Middle Tennessee State University Student Union Ballroom, Sumner County Schools’ STEM coordinator Ben Bruce, center, listens as Jayden Lee, 11, left, of Hendersonville, Tenn., talks about the STEM research project, “Just Wash It,” he and Skylar Ginn, 11, of Hendersonville, collaborated on this year. Lee and Ginn attend Madison Creek Elementary School in Goodlettsville, Tenn. (MTSU photo by J. Intintoli)

Kevin Ragland, left, Middle Tennessee State University associate professor, event coordinator and MTSU Tennessee STEM Education Center associate director, learns about the complex, eight-month breast cancer research that Streya Priyadarshi, 17, a junior at Harpeth Hall in Nashville, Tennessee, performed, much of it through a Vanderbilt University lab. The annual Middle Tennessee STEM Innovation Hub Expo took place in the MTSU Student Union Ballroom Wednesday, April 5. (MTSU photo by J. Intintoli)

During the recent Middle Tennessee STEM Innovation Hub Expo in the Middle Tennessee State University Student Union Ballroom, Sumner County Schools’ STEM coordinator Ben Bruce, center, listens as Jayden Lee, 11, left, of Hendersonville, Tenn., talks about the STEM research project, “Just Wash It,” he and Skylar Ginn, 11, of Hendersonville, collaborated on this year. Lee and Ginn attend Madison Creek Elementary School in Goodlettsville, Tenn. (MTSU photo by J. Intintoli)

Chaney Mosley, left, Middle Tennessee State University School of Agriculture assistant professor and MTSU Tennessee STEM Education Center associate director, listens as FFA member and Stewarts Creek High School freshman Catherine Denton discusses her agriculture-related research Wednesday, April 5, in the MTSU Student Center Ballroom. (MTSU photo by J. Intintoli)