Digital classroom resources for Grades 3-12.
See potential energy convert to kinetic energy in this interactive activity from WGBH that shows a roller coaster in action.
Try our Galileo Drops the Ball experiment to find out how gravity works, and then find many more amazing experiments for kids online at PlanetSEED.
help teach grades 4 and up all about Simple and Compound Machines. Explore the house and tool shed, interact with fun environments, find and identify all the simple machines and learn how they work!
