This is part of a weather unit, designed especially for first grade students but wonderful at all ages from PreK through adult. After exploring how and where fog forms naturally, students create their own fog jar with the help of the teacher. This project is quite simple and uses readily available materials...but I have provided lots of details such as background information, specifics of how to perform the experiment successfully, and assessing for understanding afterward. I have taught this lesson for years and it is always a great hit with both students and other teachers, who ask for my secrets in making it work so well. In this lesson, I give you all the secrets to success!