This unique life and earth science curriculum by Dorry and Doug Eldon enhances learning by putting key information to familiar tunes. The Lyrical Life Science and Lyrical Earth Science courses offer a good introduction prior to high school. They can be used as a stand-alone topical curriculum during the elementary grades, and as a supplement for grades 8-9. Each course comes with a music CD (featuring Bobby Horton), a 90-page textbook that includes the words and music to the songs, and a 40-page workbook. The workbook has short-answer and fill-in application questions and an answer key. Plan 10-16 weeks to complete each course. Extra workbooks are available as well.