Loudon Wainwright's 1994 is about genetic engineering.

Chris Wood's Turtle Soup is about Darwin. And he wrote a song about geology, looking back from the far future:

When cars and trucks and ships and planes will stain the seams of rock rust red.

Peggy Seeger has a couple if songs about elements:

If you want the bomb, one of your very own-ium
Not the ordinary kind but one made from plutinium...

...and one about an isotope: Polinium 210.

I heard a song by Charlie Dore last week comparing somebody to a neutrino; I think it's on her new CD. Is this a first - a song about a sub-atomic particle?