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For those poor souls who are going back to school, this week I give you an iPad/iPhone app and a video. Sooner or later, we all are exposed to the Periodic Table of Elements. Some teachers even insisted that we memorize it. (Not mine, fortunately!) 

So, in scrounging around the iTunes Store for something to review this week, I found a great freebie, EMD PTE. There are others periodic tables, free and not free, but this one seems to have most of the add-ons that you would want for quick reference purposes. 


The video to go with this? What else but "The Elements Song" by Tom Lehrer. 


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