This exceptionally exciting event is back again this December! Six teams competed last time and had an amazing time collaborating on their contraptions. We got to see a REAL handmade Archimedes' screw at work and the energy and wonder in the room was invigorating. Be a part of the magic today, plan your team to prepare for the Challenge Finale on December 8* at the Boulder JCC. Learn more about forming your team here. *This date is for the Challenge…