Before you and your students head to the theme park on your summer vacation, discover how engineers employ key physics concepts, like gravity, friction, inertia, mass, slope and force to design and create thrilling rides. With just a few affordable, easy to find materials, students can build functional zip lines for their ping-pong ball passengers!

Click here for the Science Mill's scalable K-12 curriculum for a Zip Away activity based on this project from PBS Kids.