8. Walking Water

Explore capillary action by connecting cups of colored water with paper towels. Place paper towels so they bridge between cups, and watch as the water “walks” up and over into empty or differently colored cups, creating vibrant color mixing.
This process mimics how plants transport water from roots to leaves, moving liquid against gravity through tiny tubes. You can compare this with the celery-coloring experiment, where colored water moves through celery stalks. Both activities visually demonstrate water movement in nature. For a detailed guide and variations, visit STEAM Powered Family Walking Water.


