Kate Simrall, Gabby Andrews, Sydney Breard and Lucas Jeffers, kindergartners at St. Francis Xavier Elementary, examine an egg in a protective case they designed during an educational exercise Friday. The students placed the egg in the case, dropped it from the roof of the school and formed hypotheses if the egg would break. Some of them did, like the one Sydney examines. Kate is the daughter of Holley Simrall. Gabby is the daughter of Brandon and Tiffany Andrews. Sydney is the daughter of Jason and Tara Breard. Lucas is the son of Cappy and Lavon Jeffers.