i had a whole long message composed and it didn't get posted...will try again.

Banana slug string band has wonderful kids songs with scientific topics
may be on on evolution.www.bananaslugstringband.com see their educators page...many band members are or have been science teachers

also see Man Cub from the Jungle Book movie based on Rudyard Kipling
http://www.youtube.com/watch?v=WOcyYyxqN_g with Mogli the man cub and
about an ape that wants to be human

also Mark Graham has a song about the creation story...
the big band theory
as well as a song about dinosaurs called "their brains were small
and they died"