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St John The Baptist Primary School, Portadown

Engineering Challenge- Exploring Cylinders in Bridges 🌁

20th Nov 2025

Our challenge last week was to create a paper structure that could support the weight of a P7 pupil! 

We were amazed to discover that by joining many tubular structures together a bigger weight can be supported! (When we combined all our structures together, our paper tubes could even support the weight of P7 children … wow 🤯!!! 

This type of engineering is used to help support and strengthen suspension bridges such as the amazing Mary McAleese Cable Stay Bridge!