This activity is one that students will LOVE as they review for an exam on the Roman Empire. After printing the pages of the document, cut each question so it is on its own half-slip of paper. Crumple one of the papers as small as possible. Then, take another paper and crumple it around the other one, and so on. Eventually, you will have a "snowball" of review questions. Students toss the ball around the room to the student who correctly answers their question. Once a student receives the ball, they peel off the next question and read it. The first student to answer correctly (this must be teacher-moderated) gets the ball next.