This is why you should save your organic chemistry modeling kits. just in case you need to entertain 7 and 4 year old boys. also a good reason why you should keep your organic chemistry book, in case said boys ask you all sorts of questions and you can't remember...
my nephew, Nate -- the four year old
my nephew, Brandon -- the seven year old
Brandon asked the more in depth questions, Nate just got excited when i told him what it was, "I've got a pentane ring!" Mallory just liked sorting the bonds from the atoms.