Invention Playhouse is a website sponsored by The Smithsonian National Museum of American History and aims to give children the chance to virtually explore different elements of invention through playful activities that simulate the creative processes used by innovators in science and technology. No competitions, just exploratory fun with 4 activities to choose from including Cloud Dreamer, where you can bend, pull and push the cloud shape into unique forms before releasing it into the sky. Or see how many contraptions can you get to work in unison and still guide the ball into its home in Tinker Ball. Fun site that is completely Free! Check it Out!