Measuring density of irregular shaped objects. #STEM https://t.co/Me6uXOQ27l http://pic.twitter.com/O95i1Ecarz — Pine Grove Middle (@PGMVikings) August 30, 2016
Measuring density of irregular shaped objects. #STEM https://t.co/Me6uXOQ27l http://pic.twitter.com/O95i1Ecarz
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