2A10.40 - Surface Tension - Lycopodium Powder

Code Number:
Demo Title:
Surface Tension - Lycopodium Powder
Surface Tension
Area of Study:
Heat & Fluids
Evaporating Dish, Lycopodium Powder, Toothpick, and Liquid Soap.

Spread a light film of Lycopodium powder over the surface of the water.  Place a drop of liquid soap on a toothpick and touch to the center.  The Lycopodium powder will seem to draw away from the toothpick to the edges of the dish.

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