Hello there! Congress is organized by the Senate and the House of Representatives.
The Senate is a house of Congress that partakes in things like bills, amendments, voting, and treaties. It is the upper chamber of the United States Congress and is the more internal handling chamber between that and the House of Representatives.
The House of Representatives is the lower chamber of the United States Congress. Similar to the Senate, the House of Representatives takes on being accountable for the creation and ratification of federal laws.
Together, these two houses of Congress form what is called a bicameral legislature. If you need any extra help, let me know and I will gladly assist you.