To go with MFW:ECC Castles @ Germany How to build an easy catapult for kids and learn about tension. Build a simple LEGO catapult with basic bricks. Fun STEM activity for kindergarten and grade school kids.
Build Nerf targets out of LEGO bricks! This awesome building challenge combines two of our favorite things. I love thinking of Nerf target games for the boys because then they have something to shoot other than each other. Shooting each other always seems