Years before encountering their first formal science lessons in elementary school, children may already be practicing scientific thinking on a weekly, if not daily, basis. In one recent survey, parents reported that their kindergartners engaged, on average, in more than 300 informal science education activities per year - watching science television shows, reading science-oriented books, and visiting museums and zoos (Korpan, Bisanz, Bisanz, Boehme, & Lynch, 1997). This strikes us as a lot, but it is likely to pale in comparison to what young children may experience five years from now