... For Teachers . ... Introduction: Why and how to make the study of science interesting. ... Fluid dynamos and the reason Earth and Sun are magnetic. ... I am not a teacher, but a scientist with NASA, studying the Earth's magnetic environment in space, or as it is called, the magnetosphere . ... One reason: I am appalled to see how unfamiliar the average public is with basic science. ... The magnetic evidence for moving continents and magnetic reversals fits naturally into an Earth Sciences course. ...