<p>SHAWN GUST/Press Carissa Gallegos, a fifth-grader with the Techno Tornadoes, reacts to color of an open flame changing after spraying it with a sodium solution Monday in a lab at North Idaho College. The newly formed 4-H robotics club visited the lab to learn about how chemistry relates to light and color for a better understanding of the light and ultra-sonic sensors that were in used in their state winning robot.</p>

March 17, 2012