Geologic Time Scale
A timeline of Earth's history based on major changes
Real World Example
Imagine trying to organize the thousands of photos on your phone into meaningful albums. This task is similar to how scientists organize Earth's vast history into the geologic time scale, based on major events and changes. Just as you might categorize photos by significant events like vacations, birthdays, or holidays to create a timeline of your life, geologists categorize Earth's history into eons, eras, periods, and epochs based on major changes such as mass extinctions or significant climatic shifts.
Practice Version
