This volume focuses on the motion of an assortment of balls, including a kickball and a wiffle ball, hard and soft clay balls, and a set of bean-filled cloth hackeysacks, plus styrofoam balls, puffy pom-poms, and an irregularly-shaped ball. Graphs show the motion of these balls as they are roll on flat and inclined surfaces, bounce, and fly through the air. These balls were deliberately chosen because their motion provides a greater range of variety than the balls studied earlier in the series. The graphs and data contained in this book can be used by teachers and parents to supplement traditional lesson plans. Bonus Material: Several graphs provide additional data on the wiffle ball, including initial force for a straight trajectory and rocking motion on a flat surface. The appendix also contains pictures of soft clay balls which have deformed due to impact with a hard wood surface.