This Bridge Building lab lesson plan also includes:
Students investigate the 4 types of bridges and their strengths and weaknesses at an Internet Website. They describe one type of bridge that they have seen. Students pair off and face each other with their palms touching and feet flat and apart. They slowly move their feet back while keeping their palms touching until the bridge feels balanced and they cannot back up any further without falling over. Students are asked where on the bridge do they feel tension and compression.