<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Dismiss
Skip Navigation
Our Terms of Use (click here to view) and Privacy Policy (click here to view) have changed. By continuing to use this site, you are agreeing to our new Terms of Use and Privacy Policy.

Age of Earth

Scientists have tried to determine Earth's age in various ways over time; we now know that Earth is about 4.6 billion years old.

Atoms Practice
Estimated3 minsto complete
%
Progress
Practice Age of Earth
Practice
Progress
Estimated3 minsto complete
%
Practice Now
The Age of Our World Made Easy

Image Attributions

Explore More

Sign in to explore more, including practice questions and solutions for Age of Earth.
Please wait...
Please wait...