Scientific method: Northwest Christian Elementary School fourth-graders Austin Marcy, 10, left, Karsten Kershinar, 9, center, and Harris Bosma, 9, use their hands to rotate a floating ball held aloft by air pressure. The Pacific Science Center Science on Wheels program visited the school Tuesday with its hands-on exhibits and science show. The program’s goal is to enhance science and math education at schools and community events across Washington.
Section:Photo
