One of my favorite chemistry demos ever highlights the importance of careful observations as I surprise Ss by eating this "candle" #teach180 http://pic.twitter.com/LTj8WpbE7R
— Michelle Vanhala (@MsVanhala) September 11, 2017
One of my favorite chemistry demos ever highlights the importance of careful observations as I surprise Ss by eating this "candle" #teach180 http://pic.twitter.com/LTj8WpbE7R
— Michelle Vanhala (@MsVanhala) September 11, 2017
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