NATCHITOCHES – Lyndia Vercher from Montgomery High School and Shariya Boykins, London Carter and She’Tavia Young of Logansport High School explored the makeup of dry ice during a lab experiment as Northwestern State University hosted STEM Day Sept. 29.  About 260 high schoolers from all over the Louisiana visited the campus to tour NSU’s School of STEM labs and learn about programs and careers in engineering, mathematics, natural sciences, ecology, veterinary science, chemistry, physics, biomedical and microbiology.  Professors in the School led experiments that delved into radiology, plant pigments, extracting DNA, predicting tornadoes, identifying mammals, robotics and aspects of engineering, such as lasers, electronics, virtual design software, 3D printing and more. To learn more about degree programs, upcoming events and other opportunities, visit https://www.nsula.edu/stem/.