Maryland High School Assessment for Government (actual test questions from previous tests. This is a great practice for those preparing for the quarterly assessments, the HSA, or the Midterm and Final. HSA Mini Assessments - All Interactive Tests with self-grading BCR samples
Citizenship Practice Tests - This is a great place to test your basic knowledge of American Government topics. There are dozens of practice tests that range from easy to difficult. http://aenet.esuhsd.org/Citizenship_lessons/cit_menu.html
HSA Practice Tests with Response Feedback http://apps.montgomeryschoolsmd.org/hsaprep/