Part of the Eyewitness educational video series, which features simple discussions of scientific material one topic at a time for kids and parents, too, Eyewitness: Rock and Mineral examines the inorganic realm -- rocks, minerals, and how they came to be. Martin Sheen hosts the program, tracing the evolutionary path of inorganic materials, which proves almost as action-packed and jagged as the story of organic evolution. ~ Betsy Boyd, Rovi