The two houses of the U.S. Congress are the House of Representatives and the Senate. The House of Representatives consists of 435 members selected from states based on population. The Senate has 100 members, two from each state.
The House of Representatives and the Senate work together to create laws for the United States, but each house also has special duties. The House of Representatives votes on any impeachment charges against government officials and initiates bills related to taxes and the budget. The Senate tries government officials who are impeached, confirms nominations made by the president and ratifies treaties. Senators must be at least 30 years old, but House members need only be 25 to run for office.