While the mixed solution can be stored for up to a week, the powdered, unmixed form can be stored for one to two years ...

Did you know you can make condensed milk paint? That’s right ... if creating the full rainbow of colors). 2. Add gel food coloring to each bowl, and use a spoon to mix. Add additional food ...

You could compare the way the different soap or detergent makes the colors move. We used regular whole milk but you could try skim milk or half & half. Maybe the type of milk will make the colors move ...