STRUCTURES + BRIDGESThis lesson is designed to enhance bridge building activities. It reviews the six most common types of bridges. Through this program the students will learn about different foundations, the types of forces that effect bridges and how they withstand these forces.The lesson reviews the following terms about bridges and structures:Forces: Static + Dynamic, Tension + Compression, Shear + Torque, Equilibrium, Strength in shapeBridge Types: Beam, Cantilever, Truss, Arch, Suspensi