Michael from Muckrock sez, "Here's a science experiment that would catch the attention of high schoolers: Testing cash for cocaine traces in seven easy steps, courtesy of the Drug Enforcement Agency."
In addition to being a great way to instruct kids in proper titration technique, converting between various metric measurement units, and evaporating solvents, the DEA case is a great example in the need to exercise caution in examining noise in empirical evidence: The DEA lab ultimately advised scrapping money testing altogether since 30 percent of one sample study of "clean" money turned up a positive.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.