Peabody native Daniel Unruh will speak at Bethel College’s seventh annual Science, Technology, Engineering, and Mathematics Symposium at 1 p.m. Friday.

His lecture will be about his experiences with uranium chemistry and is titled “Exploring the crystal chemistry of uranium.” The lecture will be in the college’s Krehbiel Auditorium in the Fine Arts Center on the North Newton campus. Unruh is a 2006 Bethel graduate with a bachelor’s degree in chemistry with minors in math and physics. He received a doctorate from the University of Notre Dame Department of Civil Engineering and Geological Sciences. He now lives in Kalona, Iowa, and he is conducting postdoctoral work at the University of Iowa and working as assistant director of the chemistry department’s X-ray facility.