Bright, fun, informative poster illustrates the properties and applications of six simple machines. Includes descriptions of the basic physical science concepts for each machine—load, resistance, force, effort, etc.—and explains how the machine works by changing either the size or direction of the applied force. Diagrams and equations showing the ideal mechanical advantage for each machine reinforce the concepts. Durable 24” x 36” poster is a great teaching tool and a convenient reference for demonstrating the principles of simple machines. Made from heavy stock with a laminate covering.