Earth Science Quarter 2 – Module 12: Describe How Index Fossils (also known as guide fossils) are used to define and identify subdivisions of the Geologic Time ScaleLast updated on May 17, 2021 SHS Earth ScienceRelatedEarth Science Quarter 2 – Module 11: Relative and Absolute datingEarth Science Quarter 2 – Module 10: Different Methods of Determining the Age of Stratified RocksEarth Science Module 6: Ore Minerals: How they are Found, Mined, and Processed for Human UseEarth Science Quarter 2 – Module 2: Earth’s Internal Heat SourcesEarth Science Quarter 2 – Module 6: Seafloor Spreading
