Khemometer

Wyatt brought home his present that he made at school for us. I, of course, had to open that evening and couldn't wait until Christmas. We loved it and we asked him what it was, to see if he really knew, and he told us it was a Khemometer. We could use it to see how hot and cold it is and then explained to us how the khemometer works and what the mercury would do inside. Love it! :)