If you previously purchased my Simple Machines Bundle, then you already own this! Please see your purchases page to download the revisions. If you are interested in the bundle, check it out here!Explore the basics of engineering and discover more about Simple Machines through hands-on activities and challenges for the inclined plane, lever, pulley, screw, wedge, and wheel & axle. Designed with multiple grade levels in mind, this resource provides a variety of activities, vocabulary, and less