Today’s Agenda…. Bellringer: Record your answers to the multiple choice packet on your own sheet of paper. Use capital letters! Review Fossils and Extinction Packet BrainPop Videos on Fossils and Extinction Notes on Geologic Time Scale Study Guide.
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From this information scientists have created a “calendar” of Earth’s history that spans more than 4.6 billion yearsGeologic Time Scale
Eras are divided into units called periods
Each era and period contains certain events and the presence of certain prehistoric creatures
For example: Dinosaurs in the Mesozoic EraGeologic Time Scale