Bridges and Tunnels: Investigate Feats of Engineering with 25 Projects (Build It Yourself)
<P>Bridges and tunnels are lifelines<BR>People have tackled seemingly insurmountable obstacles, including vast canyons and mountain ranges, to design and construct these amazing passageways. <I>Bridges and Tunnels: Investigate Feats of Engineering</I> invites children ages 9 and up to explore the innovation and physical science behind structures our world depends on.<BR><BR>Trivia and fun facts illustrate engineering ingenuity and achievements. Activities and projects encourage children to learn about the engineering process and to embrace trial and error. Children will engage in a hands-on exploration of Newton’s Third Law of Motion and of forces that push and pull on structures. They'll make an egg bungee jump and a soda pop can engine. They'll experiment with a triangular toothpick dome, liquefaction, and corrosion. In <I>Bridges and Tunnels: Investigate Feats of Engineering</I>, children will explore their own engineering and building skills as they create several bridge models.</P>