The Geologic Time Scale Earth’s History. The geologic time scale divides Earth’s long history into units of time… Eras Periods Epochs Eras are divided.
GEOLOGIC TIME 8-2.5. Make sure you know…….. The geologic time scale is a record of the major events and diversity of life forms present in Earth’s history.
Introduction to Animals. Section 1: Nature of Animals I.Vertebrate vs. Invertevrate A.Vertebrate – has vertebrae or backbone surrounding nerve cord (spinal.
Hadean (4.5 to 3.96 bya) Earth accreted from bolides. Material differentiated into core, mantle, crust and atmosphere. Hostile conditions. Early crust.
NS3310 - Physical Science Studies
