Physics!

No, not really.  In fact, this video is completely anti-science.  But it makes me feel good after watching it!  I'm a big fan of Christopher Walken, and don't mind Fatboy Slim.  In the interest of the theme, though, note how Christopher defies gravity.

Don't try this at home!

Old but still magnificent

Tom Lehrer is a comic musician and has had a few great pieces. This is the classic: The element song. 

   

And if you've seen that already, how about THIS educational ditty?

Brinicle of Death

This isn't really humour - especially not for the starfish it affects!  But it certainly is "science".

The temperature of the briny water is below freezing - of normal water - so it remains fluid.  It also becomes dense enough to sink.  It causes the less salty water outside to freeze solid to form the "brinicle".  Coooooool.