Your kids are going to be blown away by this fun, colorful science experiment that helps kids understand capillary action. Capillary Action Science Experiment is such a beautiful science project.
Capillary Action Science Experiment
- 5-10 drops of red food coloring to glass 1 and 7
- 15 drops of yellow food coloring to glass 3
- 5-10 drops food coloring to glass 5
Walking Water Experiment
Capillary Action Science Explained
Capillary action is the process in which a liquid moves up something solid, like a tube or into a material with a lot of small holes. This happens when 3 forces called cohesion, adhesion, and surface tension work together. Water molecules are considered cohesive (sticky to each other) and they adhere (stick) to the paper towel. As one water molecule moves up the paper towel it pulls the other molecules with it. The molecules pull each other along like a drawstring.
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