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This well-made video defines minerals as a naturally formed inorganic crystal, and rocks as mixtures of two or more minerals. Also proposes the idea that rocks and minerals are an ever-lessening natural resource which need to be conserved and recycled. Includes teacher's guide and blackline masters.
United Learning, 1560 Sherman Ave., Ste. 100, PO Box 48718, Evanston, IL 60201, Phone: (888)892-3484, Fax: (847)328-6706, Email: info@interaccess.com, URL: http://www.unitedlearning.com, Remarks: A division of Discovery Communications
Available on VHS
Running time 17 minutes.
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