This is a Notebook lesson consisting of approx. 36 slides. It contains short student notes on five different types of bridges, beam, truss, arch, cantilever, and suspension. For all but the cantilever bridge there are challenges for the students which consist of four projects using materials like spaghetti, marshmallows, toothpicks, sugar cubes, string and paper. The final challenge uses popsicle sticks and glue. Students can use anyone of the types of bridges and try to design the strongest