Exploring Geological Time

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Objective

I can describe how geologists divide Earth's history into different time periods.

Part 1 of 3

Warm-up video

NPR's Skunk Bear · 4:39

We don't generate video — this one is by NPR's Skunk Bear on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

10 questions

1

What is the main idea of using a football field to represent Earth's history?

2

According to the video, about how long ago did life first appear on Earth?

Part 3 of 3

Exit ticket

Quick comprehension check

According to the video, geologists use a football field as a metaphor to represent Earth's history. In this model, where does the beginning of life appear on the field?

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

  • Slides

    Ready to present

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