This series takes an innovative approach to examining how one substance changes into something very different as a result of a natural process. The books help children learn about complex scientific and technological concepts through the use of examples from ordinary life.
Mike Graf currently teaches classes in child development and children's literature at Chico State University. Graf has been a TV weathercaster and an elementary school teacher for nine years. A national park fanatic, Graf visits many national parks across the country every year. He lives in Chico, California.