The Museum of Innovation and Science, Schenectady (miSci) has curated a playlist of educational videos. Watch their youtube channel to learn more about the science of bubbles, solar ovens, and more!

https://www.youtube.com/playlist?list=PLgnRMb4onX-ZNM2iR6rnvvV-oRL6jiCG2

The U.S. Capitol Visitor Center shares informational and behind-the-scenes videos. They also offer offer virtual exhibits through their archives at:
http://www.visitthecapitol.gov/exhibitions/archives

A free resource for online learning, Storyline Online features celebrities reading children's' books: https://www.storylineonline.net/