Abeni Brown, 9, a fourth-grader at Raguet Elementary in Nacogdoches, Texas, works on her chemistry in the kitchen display Friday, Feb. 22, 2013, during the Gallery of Magnificent Minds science, math and art fair at the school. (AP Photo/The Daily Sentinel, Andrew D. Brosig) MANDATORY CREDIT
Gallery of Magnificent Minds

Abeni Brown, 9, a fourth-grader at Raguet Elementary in Nacogdoches, Texas, works on her chemistry in the kitchen display Friday, Feb. 22, 2013, during the Gallery of Magnificent Minds science, math and art fair at the school. (AP Photo/The Daily Sentinel, Andrew D. Brosig) MANDATORY CREDIT






