a person holding a green leaf in front of a white box with the words science for littles on it
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Floating Leaves Experiment

Cynthia on Instagram: "Leaf propelled by ink experiment 🖋️ Super easy to do and so cool to watch! For this experiment all you need is : - container with water (bowl, plate) - leaves - pens (take the pen apart so you can add the ink to the leaves) This happens because of Marangoni effect, the ink has a lower surface tension than water, lowering the surface tension behind the leaf. As the water still has a large surface tension, it pulls the leaf forward! #scienceexperiment…

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