PRESS PHOTOS BY DONNA GEWERTZJayse Morgan (left, back) and Jacob Race (right, back) attract some attention as they construct a tower of Keva Plank during Sheckler Elementary School’s science fair, held March 20 at the school, 251 N. 14th St. The fourth-grade students in Mr. Rivera’s class anxiously added height to their tower until gravity would send it tumbling to the ground.