to assign this modality to your LMS.
You are viewing an older version of this Cthink.
Go to the latest version.
We have a new and improved read on this topic. Click
We have moved all content for this concept to
for better organization. Please update your bookmarks accordingly.
To better organize out content, we have unpublished this concept. This page will be removed in future.
Age of Earth
Presents some of the ways scientists have tried to determine Earth's age over time, and how we now know that Earth is about 4.6 billion years old.
This indicates how strong in your memory this concept is
Evidence About Earth's Past
Add to Library
Share with Classes
Age of Earth Discussion Questions
A list of student-submitted discussion questions for Age of Earth.
SCI.ESC.514 (Age of Earth - Earth Science)
Back to the
top of the page ↑
Oops, looks like cookies are disabled on your browser. Click
to see how to enable them.