Preamble and 7 Articles

Preamble: 
We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.     
It is the opening statement in the constitution. the preamble explains the reasons why the Framers of the Constitution made our government a republic.

7 Articles:
legislative-to make laws, it is split into two different chambers – the House of Representatives and the Senate.It also has the power to check and balance the other two federal branches.

executive-This branch of the government manages the day-to-day operations of government through various federal departments and agencies, such as the Department of Treasury. At the head of this branch is the nationally elected President of the United States.-

judicial-Article III outlines the powers of the federal court system. Determines that the court of last resort is the US Supreme Court and that the US Congress has the power to determine the size and scope of those courts below it. All judges are appointed for life unless they resign due to bad behavior  Those facing charges are to be tried and judged by a jury of their peers. 

The states-This article defines the relationship between the states and the federal government.

Amendment-Future generations can amend the Constitution if the society so requires it. Both the states and Congress have the power to initiate the amendment process.

Debts, Supremacy, Oaths-the US Constitution, and all laws made from it are the ‘supreme Law of the Land’, and all officials, whether members of the state legislatures, Congress, judiciary or the Executive have to swear an oath to the Constitution.

Ratification- all those people who signed the Constitution, representing the original 13 states.