This Ohio River lesson covers the geography of this "working river", its history, and why it's so important to the states it flows past (Ohio, Indiana, Illinois, Pennsylvania, West Virginia, Kentucky). There is a presentation, reading passage, quiz, three activity sheets, and links to online videos. The downloadable .ZIP file includes: 18-slide Ohio River Powerpoint presentation with the lesson’s reading content, facts, history, importance, and challenges it faces. A 10-page PDF file with the f