Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Earth is split up into tectonic plates. More information can be found in the USGS publication This Dynamic Earth: The Story of Plate Tectonics shows Earth’s tectonic plates and its teaching companion (download here).
Public Domain.
