Ever wondered how cars, buses, and trucks cross rivers, valleys, or even mountains? In this episode of Carpool Classroom, Mrs. Nelson takes young listeners on an exciting journey into the world of bridges and tunnels. Learn who designs and builds them, what materials and machines are used, where famous bridges and tunnels can be found, and how engineers solve tricky problems to keep everyone safe.
Packed with fascinating facts, think-alouds, and clear explanations, this episode helps kids practice asking who, what, where, when, why, and how questions while exploring these amazing feats of engineering.