Walking water experiment 🌈 age 3-8 🌈 For this super cool experiment you need red, yellow and blue food coloring, 6 glass cups, paper towels and water. Add water to three of the cups and then add the food coloring to each cup. Link all the cups together using the paper towels. Wait several hours or overnight and watch how the water travels through the paper towels and mixes to form new colors. Amazing! 😲 | Raising Dragons - Activities For Kids