The United States Government

Our government is based on the US Constitution.  Check out this teacher's page on it.
Our constitution also includes amendments (changes).  The Bill of Rights is what the first 10 amendments are called.

Read about all three branches of government, the constitution and more on Congress for Kids.
Check out this short Brain Pop video about the government.
Kids.gov has an easy to read graphic about the three branches of government.
Fact Monster has a great page describing the government.
Finally, read more on Ben's Guide to the US government.

School House Rock is old, but fun.