A friend posted these on Facebook. I was way too busy to take pictures that night!
My assistant Alex - right before the "bomb" explosion--And this is the "bomb" at its best--I even got a Facebook message from a much-loved student who was in the 7th and 8th grade back when we used to do these at BJJH, remembering how this was one of his favorite memories of junior high.
The "blob and bomb" lady.
And this is what the "blob" looked like as it rose out of the beaker.
It was a good evening, but after doing the demonstrations seven times, I was ready to call it a night.