River Rocks #6: Grid of Phenocrysts

Fifth graders use transparencies, grid paper and digital photographs of Mt. Hood phenocryst samples to determine the amount and direction of the crystals. They calculate percentages and are introduced to how geologists use the percentages to classify samples.

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Resource Details

Grade
5th
Subjects
Science
1 more...
Resource Type
Lesson Plans
Duration
1 hr
Instructional Strategy
Inquiry-Based Learning