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Hydrophobicity: Will The Water Drop Stop Or Roll?
Examine surface textures and conduct a “tilt test” to compare how materials with different surface textures repel or absorb water.
Educational Resource
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Make A Wire Critter That Can Walk On Water
Learn how insects have inspired engineers and design your own water-walking critter using thin wire and your knowledge of surface tension.
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Test the Finger Wrinkle Hypothesis
Perform an experiment to determine whether smooth or wrinkled fingers are better at holding wet objects. The experiment requires only a water bottle, paperclip, and plastic ruler.
Downloads: Video, student data sheet, illustrated instructions