Uses of Rocks and Minerals

Aiming to give young students an idea of the value of elements from the Earth's crust, Uses of Rocks and Minerals shows how concrete, brick, asphalt, and steel are produced, as well as products and processes somewhat removed from their "earthy" origins, such as glass, and objects of beauty, like precious gemstones. While the video does touch briefly on ecological concerns related to mining, the narrator assures us that strip mines become reclaimed land, with the questionable implication that it's just as good. Much of this information is covered in Real World Science: Rocks and Minerals (VL-3/00); still, those without similar fare will want to consider this reasonably priced overview. Also available at the same price from 100% Educational Videos, the companion volume Rocks: Solid Earth Materials. Aud: E, I. (R. Reagan)