tagged with: do me a favor, think periodically, periodic table, periodic table of elements, elements, chemistry, geek, humor, saying, words and unwords, thinker, chemist, scientist, joke, think, favor, funny
Scientific geek humor is alive and well on any of the educational, scientific gifts featuring the Periodic Table of Elements along with the saying "Do Me A Favor Think Periodically". No need to be a chemist or chemistry teacher to enjoy!
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