Although it is hard to claim that one or two school visits by a scientist will change how students think about science and their place in it, the authors’ experience suggests that, for many students, a school visit by a scientist makes a big and long-lasting difference. The goal of this paper is to describe work done by the British Columbia Scientists and Innovators in the Schools (SIS) organization during the 2005-2006 school year and to provide some tips about how to make a school visit a success.