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 lessons to fit your class' needs.Along with the main Simple Machines unit, this bundle includes 2 mini-units: Rube Goldberg Machines as an introduction to machines and "The Elves and the Baker" a pro