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Educator Resources

Exploring In-Depth

In The Rise of Oxygen, geologists investigate the 2.5 billion year old Huronian Supergroup, a sedimentary formation in Ontario, Canada, looking for clues about Earth's early atmosphere.

This feature can be used to illustrate the process of science. It shows how geologists collect evidence that they use to formulate and test hypotheses about the composition of the ancient atmosphere. (Read more about The Scientific Process.)

This Classroom Discussion Activity can be used to connect your students to the process of science, highlight overarching scientific themes, and enhance comprehension of the story.

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