Craft Stick Catapult - I made 4 of these in 5 minutes and they work great! You need craft sticks, 4 rubber bands, hot glue or tape, and a bottle cap (I cut apart an egg carton because I didn't have any bottle caps).
Make popsicle stick catapults for kids STEM activities. Explore physics and Newtons Laws of Motion with a simple machine. All you need are craft sticks and rubber bands to build a simple catapult for kids. Hands on STEM activities make learning fun.