12 questions about the US Constitution

What is the US Constitution?

Why was the US constitution written?

What happened at the constitutional convention?

Who wrote the US constitution?

How was the US constitution ratified?

How is the US constitution organized?

What is the legislative branch?

What is the Executive branch?

What is the Judicial branch?

Can the US constitution be changed?

What is the Bill of Rights?

Is the US constitution useful today?