Rosie is captivated by an Australian show right now called Backyard Science. There are bunches of episodes on youtube, but like the Candian physics show Eureka, they are hard to get to from the main youtube page. Also, one never knows what evils are lurking on youtube waiting for unsuspecting children.
Below are the links to the youtube episodes of Backyard Science for my kids', and your's, safe viewing pleasure. I think they have Russian subtitling, anyone know what that language is?
Episode 43, 44
Episode 46, 47
That seems to be the last Episode available on YouTube.