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Don James, Water Resources Design, Fort Worth, presented about the Rock Cycle to 263 sixth graders in eight classes at Wedgwood Sixth Grade School last month. Don covered the main geological concepts and the group responded with lots of questions. 

During the presentation, Don passed around his 36-year-old rock collection. He discussed and presented examples of the three rock types -- sedimentary, igneous, and metamorphic -- where they can be found in Texas, and some of their significant uses. Don also talked about what a geologist does, the many disciplines of geology, and...

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