Chapter 2, Section 3 â Unit A Science 8 Messana 1. Hadean 2. Archean 3. Proterozoic 4. Phanerozoic #1-3 make up Precambrian Time Eons -> Eras -> Periods -> Epochs…

Update your Table of Contents for todayâs activities Get your Argumentative Writing Prompt out to be checked Using pages A63 â A64 in your science book complete the âDivisions…

Write you homework â get it stamped! Update your Table of Contents for today! Complete the Vocab Practice Quiz 2 â you may work together and use your notes! When you have…

Geologic Time Scale â a timeline of Earthâs History divided into periods of time by major events or changes on Earth What do we call these major events or changes? Geologic…

Objectives Describe the evidence used to determine the age of Earth. The Early Earth Understand why scientists theorize that the early Earth was hot. zircon asteroid meteorite…