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Lesson summary for:
Sequencing Time


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Students assign relative and numerical times to events in their lives to understand how scientists developed the Geologic Time Scale.

UC Museum of Paleontology

Grade level:

40-50 minutes

Teaching tips:
This activity could be adapted to 5th and 9th grade as well.

Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.

  • Scientists use geological evidence to establish the age of fossils.

Teacher background:

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