Hair-raising experience

While placing her hands on a Van de Graaff generator, Clarabelle McCaffrey, 8, of Pleasant Hill, above, has the charges from the generator make the individual hairs on her head repel each other, causing her hair to stand on end during a demonstration by student Justin Fisher, of Martinez, at the inaugural Pleasant Hill Citywide Science Fair on March 4. The fair was hosted by the Pleasant Hill Education Initiative and the library. Steve Ladrech, of Martinez, below right, instructor of the branch library's Lego Robots Creators Club, shows children how to make a Lego robot, while at the Lawrence Hall of Science hands-on activities area, children build structures using rolled-up newspaper.