🌁How do bridges & arches hold weight? 🌉

Last Friday, Onyx class had the best time in their DT lesson exploring how compression works in bridges and arches. They linked this to the way igloos hold their own weight 🧊

They made their very own mini versions of different types of arch out of clay and tested whether they collapsed when the ‘key stone’ was removed.

Here are some of their masterpieces…😃