Do Now: Put the following events in order from oldest to most recent and label each with its appropriate Era.
- 1st mass extinction
- 1st atmosphere
- oceans form
- first stable continents
- 2nd atmosphere
- bacteria and archaea dominate
- photosynthetic bacteria evolve
- formation of the solar system
Today in class:
- Reviewed Precambrian eon
- Reviewed relative and absolute time
- Discussed theories for the formation of the moon
Homework:
Due Monday, October 8th
- Precambrian Eon Quiz Review
- Geologic Time Travel Brochure
Monday - Quiz on Precambrian Eon, Geologic Time Scales, Relative vs. Absolute Age
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