Utah STEM Expo, hosted by Beehive Science and Technology (BSTA). Event will be a venue for middle and high school students to showcase original projects and demos, professionals to show how STEM is used to better communities, and spectators to participate in hands-on experiments. Event also will include robotics presentations, science shows, science trivia, STEM passwords to win donated prizes, and more. Location is Mountain America Expo Center, 9575 S. State St., Sandy. Free, and open to the public. Details are at www.utahstemexpo.org.