Geologic Time Webquest
Geologic Time Webquest
AP Biology
Based on
Answer these questions as your class progresses through this tutorial.
1. Approximately how old is the earth?
2. When did the earliest life appear on earth?
3. What is missing when showing the relative order of events in a timeline?
4. What is the Law of Superposition?
5. Draw a cross-section of a mountain with five basic rock layers and label the oldest and the youngest layers.
Youngest (
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Oldest (
6. What process gives us absolute dates of rocks?
7. What type of rock layer is easy to date?
8. What does the Geologic Time Scale represent?
9. What is characteristic of the Pre-Archean?
10. What life form evolved during the Archean?
11. What does Proterozoic mean? Is this accurate? Explain.
12. What three eras make up the Phanerozoic Eon? What does each name mean?
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