Just because school is out for the summer doesn't mean you can't enlighten some minds with science! I mean c'mon, kids of all ages are fascinated by silly putty, add some magnetism to that equation and BAM! You've just blown a few minds. What more coud you ask for?
Knowing is half the battle...and not paying for it is the other half. Be sure to peep thess FREE e-books on one of Curbly's fave media, photography. These ain't no one page folded booklet pdfs, these are BOOKS, and they're FREE, and they're GOOD.
I'm past the point where I need something like this (I failed my SATs years ago), but I still think these SAT Prep shower curtains are pretty neat:
They've also got Spanish, French and Math study curtains. So now there's now excuse for relaxing in the shower; get back to studying!