Engage your students in spooky science this October with the Ghosts in the Graveyard® STEM Challenge! In this Halloween science activity, students design and test a pulley system that transports cotton ball “ghosts” through a haunted graveyard. It’s hands-on, collaborative, and perfect for grades 2–8. If you’re not planning Halloween-themed STEM this year, no worries! A bonus “Grapes in the Vineyard” version is included so you can run this pulley challenge any time of year.Halloween STEM Activ