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Welding with Chocolate

Welding with chocolate is an innovative and fun way of demonstrating welding and engineering principles in the classroom or at home!

Bridges are made of all kinds of materials, wood, stone, steel, bamboo, concrete, and in this experiment - chocolate.

A simple bridge can be made of one plank that spans the distance to be crossed.

A box girder bridge, however, is made from a long beam in a box shape instead of simply a plank. This box shape makes the beam much stiffer.

We can demonstrate this by ‘welding’ chocolate bars into a box girder and comparing the weight a chocolate box girder can take in comparison to a chocolate plank.

  • how much more load can you add to a box girder bridge compared to the plank bridge?

  • if and when the bridge breaks, how does it break?

  • why is your chocolate box girder bridge stronger?To find out where The Welding Institute will be demonstrating the experiment, go to our Exhibitions page

 

Find out where The Welding Institute will be demonstrating the experiment by visiting our Exhibitions page


To download our Factsheet click here ... and try the experiment in school with your teachers! 

To view a video of Welding with Chocolate, you can click here to view on the TWI website or click here to view on YouTube.