|First we built a bridge using toothpicks and marshmallows|
|We used graham crackers for the road. We tried to place a toy car on the bridge but it wouldn't support it. Then MarioFan ate it:) always the fun part of any school project|
|Next we got to work on making a popsicle truss bridge --|
|There are many patterns that can be found on the web, some very complicated and others very simple. We came up with our own patterns after looking at many many patterns|
|He enjoyed driving his Mario car over the bridge. This bridge did much better supporting the toy car|
|Next we got out our bridge modeling kit and built another Truss bridge|
|and added it to our bridgemodel stand|
|Then we got out our K'nex kit MarioFan decided to build a K-truss bridge after looking at the many different types of Truss bridges.|
|First we built the beam bridge and tested its strength. He noticed how easily it bent in the middle|
|We added the Truss beams|
|and tried to bend the middle and this time it didn't budge.|
|Can you see the K's in the beams|
|Lastly we decided to turn our popsicle truss bridge into a covered bridge after looking at some truss bridges on the web.|
|MarioFan decided to paint it red.|
We had a lot of fun learning about Truss Bridges and understanding why Triangles are a stronger shape and why engineers prefer to use then on bridges.
I just got word that we will be meeting up with a real bridge engineer in the next few weeks and looking at a local historic bridge. Both of us are excited about this opportunity and looking forward to learning even more about bridges from an expert!