Year 4 - Bridges challenge

This week in Year 4, we became engineers for the day! Our challenge was to design and build bridges using only straws, cardboard, and glue . Once our bridges were built, we tested them with weights to see how strong they were. We worked in small groups to come up with different designs. After building time, we carefully placed weights on each bridge to test how much they could hold. Some bridges held more than 200g before they broke, while others collapsed more quickly – but we learned something from every single design . We talked about what made some bridges stronger than others and why some broke. Over the next couple of weeks, we'll investigate how to stop our bridges from breaking. Next time – stronger, smarter bridges! "They need to be stronger in the middle so they don't bend."