Materials –
6 cups
Water
Food coloring (3 different colors – red, blue, and yellow)
Paper towel
Pour water in three of the cups and alternate them by three empty cups, add a few drops of the food coloring to the cups that have water in them. Fold a paper towels and place them in between each cup. The water will travel from the cups with water to the empty cups blending the colors and making a beautiful rainbow. The experiment took approximately 3 hours.

This is the set up. Six cups, three with the colored water alternated by three empty ones. The paper towel needs to be placed amongst the cups.

He is checking the water starting to transfer from the cups.

Final product! Successful water transfer with no mess and a rainbow looking water cups.