Build a Better Catapult

STEM: 3rd-8th Grade

STEM lesson for grade levels 3 – 8, where students will investigate how potential energy is transformed into kinetic energy using a simple machine.

Download the Lesson Guide provided to follow along with the video above. At the end of every Lesson Guide is a fun challenge to get the students involved!

To submit your assignment, email a picture to and tag us in your picture on Facebook/Instagram @oerbok.