Get your students "into the swing" of science with this fun and simple hands-on experiment. Materials required for this activity are supplies that are already in your classroom. All you need to buy are some medium-sized metal washers. They can be found at any hardware store, and most department stores, for pennies. This product includes lesson plans, a student question sheet with answer key, a data table sheet, a graphing worksheet, a picture of a sample graph, and a picture of the materials set-up. The lesson plan takes you through the application of the Scientific Method and includes several variations that can be done with the same materials. You can allow students to do the alternate activities at home for extra credit. You could also have different students do different variations in class and then report their findings to everyone. This can be done in a very structured, controlled way, or it can be more individualized depending on your group of students. This activity is also a fun idea for a science fair project. PLEASE provide feedback and a rating if you purchase this product. I would really appreciate hearing what you think.