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Lesson summary for:
Understanding Geologic Time

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Overview:
A web-based module in which students gain a basic understanding of geologic time, the evidence for events in Earth's history, relative and absolute dating techniques, and the significance of the Geologic Time Scale.

Author/Source:
UC Museum of Paleontology

Grade level:
3-5

Time:
One class period.

Teaching tips:
Appropriate for 5th grade with some teacher guidance.

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

  • Life has been on Earth for billions of years.

  • Fossils provide evidence of past life. (LS4.A)

  • Scientists base their ideas on evidence from the natural world. (P3, P6, P7, NOS8)

  • Scientists study rocks and how and when they were formed.

  • Scientists study fossils and how and when they were formed. (LS4.A)

Teacher background:

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