The girl on the left’s facial expression sells this one.
damn that link!
It is the ideal pancreas one, which is apparently a part 2, which might explain her facial expression.
I went to my first one ever last night (as a parent, I didn’t do that kind of thing in school), and I have to say that as entertainment it was pretty questionable. That might have been more to do with the over-tired children I had to wrangle, though.
Where would elementary school science fairs be without vinegar and baking soda?