This Halloween STEM activity will keep your kids engaged & learning! Not doing Halloween activities this year? No problem! Just add this to a science unit on bats, life science, the physics of flight, or as a supplement to Stellaluna.Basic Premise:In this Halloween STEM challenge activity, students design and engineer a new set of bat wings, with the goal being to achieve maximum flight distance and/or accuracy. You can even throw in style points, if you like! It's a paper airplane challenge