Family Saturday – Saturday, September 30, 11 AM to Noon Carnegie Room How Strong is Spaghetti? September 20, 2017 / Evelyn Lyzenga / Children, Updates / No Comments STEM CHALLENGE FOR KIDS! Challenge kids to invent a way to find out! K-5th grade. This STEM challenge is a lot of fun, and you won’t need much in the way of materials! No registration required.