After one listen my two (5 and 3) were singing bits of it, and they love watching the videos too, which have the usual TMBG kind of humour to them. This morning, Offspring #1 decided he wanted to do an experiment, so we watched a solid turn to a liquid and then to a gas (the subject of one of the songs).
Anyway, go get it!
Here's one of the videos...
Interestingly, they even follow the scientific method on the disk, with one song correcting the previous one with new data!
