We visited the Museum of Science and Industry in Chicago today, splitting into two groups (Dan/Reece, Greyson/me) for a large part of the time. Dan and Reece spent a lot of time in the science experiments area, where apparently molecules can be assembled using atoms from the periodic table and you can find out what would happen in real life if you made those specific combinations, eg. salt and bombs.
This evening, Reece asked me what you make if you combine hydrogen and oxygen. He told me I was right when I said "water". Then he said, in a very thoughtful tone of voice, "You know, there's a lot of ways to make explosions." I'm warning his future high school chemistry lab teacher now.