Parents need to know that this fascinating documentary series examines the geological creation of some of the world's unique features, including the Alaskan glaciers, the sprawling Sahara, and the volcanic Hawaiian islands. Scientists explain the subjects' origins and try to predict what the future holds for these natural wonders (using stunningly realistic computer-generated images to illustrate their ideas). This educational series is perfect for families with grade-schoolers who've started to study related topics, but it may bore younger kids, for whom such scientific concepts are still out of reach.
Positive messages:Scientific concepts like geology and plate tectonics are explained and illustrated for viewers, who learn how some of the earth's most impressive natural wonders were formed and continue to change.
Violence & scariness:Computer-generated images depict large-scale disasters like volcanoes and tsunamis burying towns and cities. There's some discussion of the dangers that scientists and the show's guest sportsman face in their studies. (In one scene, for instance, a man walks along the ridge of an active volcano while the narrator reminds viewers that one false step could send him plummeting through the newly formed rock into hot lava.)