An activity that makes a nanoscale film of oleic acid on water. The student will Learn about Ben Franklin’s observations of a thin film that had a nanoscale dimension. Create a very thin film with a very dilute solution of oleic acid. Use data you collect to determine if you made a thin film with a nanoscale dimension that formed on the surface of water. Learn about the molecular interactions that resulted in the formation of the thin film. Be introduced to the Big Ideas of Nanoscale Self-Assembly