| ABCD's Bridge Design Tips for Kids [ Teens/Mature Teens ] - Provides tips for bridge-building projects, including topics such as form, connections, properties of balsa wood, links, and a bibliography. http://www.abcdpittsburgh.org/kids/kids.htm |
| Balsa Structure Tips [ Teens/Mature Teens ] - Offers advice on studying balsa wood to ensure good pieces. http://www.geocities.com/CollegePark/Campus/6697/CPS/structure1.htm |
| Balsa Wood Bridge Info [ Teens/Mature Teens ] - Very detailed instructions on the construction of model bridges. Also has charts showing the properties of Balsa wood. http://www.zimsweb.com/balsa/information/info.htm |
| Balsawood Structure Design [ Kids/Teens/Mature Teens ] - An in depth analysis of test results of a balsa wood structure. http://www.literaturenotes.com/basementpapers/papers/stack41_2.html |
| Bridge Building Contest [ Kids/Teens/Mature Teens ] - Description of a model bridge building contest. Also has tips on how to start your own contest. http://www.iit.edu/~hsbridge/database/search.cgi/:/public/index |
| Bridge Design Tips [ Teens/Mature Teens ] - Has specific advice for IOUM competitions, but also general model bridge building tips. http://php.indiana.edu/~iuom/structure.html |
| Bridge Over Cardboard Water [ Kids/Teens ] - Contains instructions on how to build a toothpick truss bridge. Includes a print-friendly version. http://www.yesmag.bc.ca/projects/bridge.html |
| Bridge Truss Designs [ Kids/Teens ] - Pictures of various standard trusses including the Warren, Howe, Pratt, and different variations. http://www.geocities.com/Baja/8205/truss.htm |
| Competition Tips [ Kids/Teens/Mature Teens ] - Offers basic tips on model bridge structures. http://www.midwestproducts.com/structtips.htm |
| Interesting Facts About Balsa Wood [ Teens/Mature Teens ] - In-depth look at Balsa wood. Includes pictures of the different grain types, and tips on how to use each. http://www.greathobbies.com/document/tech_balsa_1.html |
| Model Bridge Design [ Kids/Teens/Mature Teens ] - Tips and advice about designing and building model bridges from basswood and balsa. http://www.garrettsbridges.com |
| Physics Balsa Bridge Building Contest [ Teens ] - Records, rules and tips for this twenty year old contest along with hundreds of photographs of bridges. http://www.balsabridge.com/index.htm |
| Structure Guide [ Teens/Mature Teens ] - Designed as a resource for DI model bridge competitions, but the basic principles will work for anyone. http://www.dipins.org/resources/structure/structure.htm |
| Technology and Bridge Design [ Teens/Mature Teens ] - A bridge building activity with glossary terms. http://projects.edtech.sandi.net/pbmiddle/bridges-tech/ |