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Understanding Evolution

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Home → Teach Evolution → Lessons and Teaching Tools → Teaching Resources Database → Who’s on First? Relative Dating

Who’s on First? Relative Dating

Grade Level(s):

  • 6-8

Source:

  • Barber, Marsha and Bartos, Diane

Resource type:

  • Classroom activity

Time: 30 minutes

Overview

Students sequence familiar items and then do a similar sequencing activity using fossil pictures to learn how paleontologists use fossils to give relative dates to rock strata.

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drawing of fossil ammonite and sponge
  • [Evidence of evolution: Grades 6-8] The sequence of forms in the fossil record is reflected in the sequence of the rock layers in which they are found and indicates the order in which they evolved. (LS4.A)
  • [Studying evolution: Grades 6-8] Scientists use fossils to learn about past life. (LS4.A, ESS1.C)
  • [Studying evolution: Grades 6-8] Scientists use geological evidence to establish the age of fossils.
  • Disciplinary Core Idea LS4.A: Evidence of Common Ancestry and Diversity
  • Disciplinary Core Idea ESS1.C: The History of Planet Earth
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