This worksheet is a great opening activity when your class begins to study the events that lead to the Civil War. Play "A Dividing Nation" from the Professor Presley History Rocks CD (found here on Teachers Pay Teachers or available for individual download on sites like Itunes). Students try to listen and fill in all of the blanks. I play the song twice and then reveal the answers to the class. It isn't easy to get them all right especially if students haven't studied this period yet. At the end of the unit we do this again and the students are able to see how much they have learned and remember about this eventful period in American History.