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Earth science.
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| Other Authors: | , , |
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| Format: | Book |
| Language: | English |
| Subjects: | |
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| Item Description: | Man has always been curious about his natural surroundings. Among the first objects of his curiousity were the soils, stones and rocks in the hills and stream valleys of his environment. Man's attention to the solid stuff of earth was often more than idle curiousity for from the rocks and stones came the metals for tools and coins and the blocks of materials for shelters and fortifications. Man has known about minerals and rocks in a practical way for some time but only in recent times has he begun to study them, to learn the secrets of their formation. |
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| Physical Description: | Videocassette (VHS)(ca. 25 mins.) : sd., col., 1/2 in. |