Students will move a 2 X 4 inch block with a hook attached across different surface areas. Students will discover how the friction created by these surface areas affect the movement of the block. Students will begin the activity by predicting which surface will produce the most and least friction. Five different surfaces will be tested (smooth table or desk top, wax paper, paper towel, course sandpaper and fine sandpaper).This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.