To Get to the Other Side: Designing Bridges (grades 3 & 4)
When civil engineers design bridges, they must take into account factors like balance and motion. This unit introduces the principles behind bridge design. Students will reinforce their understanding of “push” and “pull” as they explore how forces act on different structures. They’ll use what they know about balance and force as they experiment with beam, arch, and suspension bridges—and learn how bridge designs counteract and redirect forces and motion.