On these pages we show you some common bridge designs and describe their structure. We have photos of famous bridge designs. Then we describe a contest that allows students to build a bridge from toothpicks, following strict design rules. We even include a simple formula for determining the winner of such a contest! Also included are instructions for students on how to get started with their bridge, bridge designs using marshmallows, and a virtual bridge building page, where you can experiment with toothpick designs right here on your computer!





About Bridge Structures
Types of bridges, and important terms





I-Beams
How they work





Bridge Photos
Actual bridge designs





Using Toothpicks
A bridge-building contest.




Make a Plan
How to start your bridge.




Try It With Marshmallows
Quicker and easier, but not as strong.
See attempts with straws and plasticene too.





Build a Bridge Now
Build a virtual bridge right here!

You might also be interested in our page about the Tacoma Narrows bridge disaster.
We have pictures and a short video. Visit the Tacoma Narrows Bridge page.




Physics | Science Pages | Worsley School


Content, Graphics, & Design by Bill Willis 2000
Wunderland Website Design