supermom515 nailed it! If we base our calculation on the 40lbs used to dye the Chicago River yesterday... It would take 250,000 pods! If you stacked them on top of each other that would be 28.5x the height of the Willis Tower! #saintpatricksday #learningresources #beakercreatures #momsofinstagram #momsoninstagram #Chicago #scienceisfun