<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Dismiss
Skip Navigation

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
Turn In
4.6 Billion Years in the Making: Our Wonderful World

Explore More

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