You have decided to compete in a science fair. You want to do a great project, but you have no ideas. What do you do? Where do you start? With this unique and fun set of experiments, author Robert Gardner will show you how to learn about physics with the help of your bicycle. How do the gears on your bike work? Why do some bikes need thicker tires than others? How can you use water balloons to measure your bike's speed? You will be surprised how many answers you can find with just your bicycle and a few other household objects. Terrific ideas for further experimentation are provided so that you can create original science fair projects. So, hop on your bike and get started!