Sinking and floating with coke cans

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While doing a experiment on floating with cola cans. It used to be that Coke cans would sink and sugar free ones should float but that is not true anymore. There is only... READ MORE

Science behind 3D glasses

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Nice activity to show how 3D glasses work. Hold 2 glasses facing each other, look through both lenses, then through each lense, see the results below. Each lense is polarized differently. You can... READ MORE