Bring the structure of DNA to life for your middle school science students with this resource that would make Watson, Crick AND Franklin proud. In this lesson, students learn the history of DNA discovery, demonstrate how nucleic acids pair with one another, and observe DNA with the naked eye. This 1-2 day lesson includes a presentation that guides students through the history and structure of DNA, including topics such as Chargraff's rule and base-pairing rules. Students then complete sequences