Dude, you gotta get ahold of the Sierra club or something. All that litter?? Not to mention, what if a bird eats that ballon? If it won't decay in the landfill, what's the chance the bird can digest it?

Just kidding around above... I think it is really cool that you take the time to write back to the school kids. I am sure they too appreciate knowing where their experiments end up. And hey who knows, maybe one of them will slip a $20 in one of those balloons. LOL

HDF