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Handout

U.s. Geological Survey: Geologic Time

Curated by ACT

A discussion of geologic time, how scientists use the concept, and how they have determined its span.

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Concepts
fossils, plate tectonics
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Additional Tags
decay rate, geologic time, geological history, relative time scale, rock sequence, us geological survey, usgs, geologic dating methods, radiometric scale, rock layering
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Classroom Considerations
  • Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)