If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Video Transcripts

Video captions in PDF or text format are provided for the following videos.
4.0—Earth & the Formation of Our Solar System
4.1—What Was Young Earth Like?
4.2—Why Is Plate Tectonics Important?
4.3—Ways of Knowing: Our Solar System and Earth

Want to join the conversation?