The INTERNET Database of Periodic Tables
There are hundreds of periodic tables in web space, but there is only one comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach.
3 Year-Old Sings Tom Lehrer's Elements Song
Rose turned 3 in November. It's been a little over a year since her initial elements video.
She's still interested in elements, but not so much by playing the cards anymore, mostly via this song:
© Mark R. Leach 1999-
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