This 9 slide powerpoint provides a great review activity for the Civil War. Several of the slides include blank charts that you can print off for each student and have them fill in the appropriate information.
Notes for the teacher on how to use the charts and information are provided at the bottom of various slides in the "notes" section.
I use this as an end of unit review; it gives me an opportunity to assess how much of the information the students retained. I typically use the first chart (North vs South) to quiz my students knowledge on the advantages & disadvantages of each side during the Civil War. The next two charts I use to generate discussion and play a review game with the students. By the end of the review, students will leave class with three complete pages of review material to help them study for an end of unit test.
(note: there are two items on the 2nd chart related to Texas history specifically but this can easily be modified and changed/deleted to suit your needs).