I’m back in Mrs. O’Neil’s Chemistry class in the 80’s!!!!! #MoleDay
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Is there a Khan Academy iPhone App? I want to learn on the go!
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Yes, but sadly it only allows watching
@khanacademy videos. no option to take the mastery challenges in the app. https://itunes.apple.com/us/app/khan-academy/id469863705?mt=8 … - 2 more replies
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#MoleDay My grandfather the#Chemist John Köhler 1864-1946 spent all his days in the laboratorypic.twitter.com/0Ewzili9z1
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