Build a catapult STEM Activities for Kids explains how to build catapults ... This project, found on the Frugal Fun website, puts a STEM twist on the homemade slime that is a staple for hands ...

Do Try This at Home! Try your hand at these fun activities from the Lemelson Center for the Study of Invention and Innovation Explore, Discover, Learn: Back to School with the Smithsonian Our ...