My trusty student aide perused the database and found a bunch of the mathy-sciency ones. If you don’t feel like combing through yourself (or don’t have the aide to beat all aides), you can find them on my del.icio.us account.
At Andy’s suggestion, we’ll be reading #106 at the conclusion of the Pendulum unit.
Then it’s always a marvel to me
That each tick plus each tock
Of the grandfather clock
Is 2 pi root L over g.
Hmm… it just occurred to me that talking about limericks with high school freshmen might not be such a good idea.