Riches from the Earth may be precious metals, commercially valuable ores, other minerals...even water, mined from deep within the Earth. This is a story of discovery and depletion, and of technology, conservation, and recycling. 20 minutes.
About Educational Videos
Each video comes in a sturdy, plastic storage case and includes a Teacher’s Guide. You may reproduce the text in whole or in part. All educational videos include Public Performance rights for use in educational settings. Several titles are available in Spanish and most are closed-captioned. Call 1-800-368-2728 for more information.
ISBN: 0-7922-1125-1
Copyright Date: 01-FEB-82
U.S. Price: $49
Canadian Price: $77
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