What are the three branches of government?

"What is a Constitution? What was there in America before the Constitution? How can the Constitution be changed? What is the Bill of Rights? How was the Constitution written? All of these and other 'must-know' questions about U.S. Constitution are answered in What Are the Three Branches of Government? And Other Questions about the U.S. Constitution. The engaging stories of America's foundation will keep kids reading even if they don't have to write a book report"--