This resource from Khan Academy provides advanced-level practice questions over the structures, powers, and functions of Congress. These practice questions are intended for students taking high school or college level American Government...

This resource from Khan Academy provides foundational-level practice questions over the structures, powers, and functions of Congress. These practice questions are intended for students taking high school or college level American...

This government-designed site from The US House of Representatives provides a clear chart of the organization of Congress, as well as links to sites of the current leadership.