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The Method Draw a wavy line an inch from the bottom of each towel strip, using a different color pen on each. (Older kids should note which color is on which strip.) Dip each strip into the water so that the bottom edge of the paper towel is submerged, but not the line of ink; hold in place as the water creeps up the towel. The ink marks will spread, revealing the different dyes that make up each color.
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