This lab experiment is an eleven page document that contains a wide variety of materials. Items included: detailed teacher directions, master copies of student handouts, a writing prompt, and a detailed score sheet (to make teacher grading much easier). I have used this lab every semester at the beginning of my high school biology class, but this can be adapted for middle grades. All of the materials used are economical and easy to obtain. The activity could easily occupy an entire high school class block. I will separately attach other items on teacherspayteachers under the same name.