Allenton Elementary fifth grade students Kristtina Hahan, 11, left, and Sarah Jankowski, 11, reach out to touch the rainbows they see at the "Prismatic Glasses Reveal Gases" table during the Great Color Caper at Allenton Elementary School in Allenton on Friday, March 15, 2013 in Allenton, Wisc. The Great Color Caper group helps introduce students to the science behind colors, prisms, pigments and optical allusions. (AP Photos/The Daily News, John Ehlke) JOHN EHLKE — AP