Geologic Time Scale

Geologic Time Scale Definition - Easy to Understand

A timeline of Earth's history based on major changes.

Video: Geologic Time Scale explained in an easy to understand way.

Imagine trying to organize a huge photo album of your entire life, where each photo represents a significant event or change. This is similar to how geologists organize Earth's history into a timeline based on major changes and events that have occurred over billions of years. Just as you might categorize your photos by memorable moments like birthdays or vacations, geologists categorize Earth's history into different periods based on significant geological events, such as mass extinctions or the formation of mountain ranges, creating a structured timeline that makes sense of the planet's vast and complex past.

Real World Example Illustration

Geologic Time Scale - A Real World Example

Practice Version

Geologic Time Scale Definition - Easy to Understand