Top high school chemists hit Academy labs
John Rosenberg from Barrington High School in Barrington, Ill., combines precise amounts of reagents during a recrystalization experiment in a U.S. Air Force Academy Department of Chemistry laboratory at the Academy June 5. Rosenberg was one of 20 teenage chemists here for a Chemistry Olympiad training camp, competing for one of four spots on the U.S. team that will travel to the international Chemistry Olympiad in England in July. (U.S. Air Force photo/Rachel Boettcher)