Oh, that's so cool. We just started that thing where you boil salt into water until no more dissolves (it's called supersaturated), then it's poured into the bottom of a (cut in half) water bottle with threads hanging down into it and waiting for it to evaporate. We put a few drops of red in it.
The boy asked me to do it next time with sugar instead.

I'm going to have to read it again, was the point of the cookie thing to excavate chocolate chips out of cookies with toothpicks?

Youth lives by personality, age lives by calculation. -- Aristotle on a calendar