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Description

Exploring water surface tension using water, tin foil boats and dish soap.

Surface tension allows the cardboard boat to float on top of the water. Adding soap disrupts the arrangement of the water molecules. The water molecules near the detergent are attracted to the detergent as well as to other water molecules, so the surface tension of the water behind the boat decreases.

Resources

Paddling pool
Tin foil
Hose pipe, or a method to fill the paddling pool
Dish soap

Instructions

1. Make the boats
2. Fill the pool
3. Float the boats
4. Add dish soap and watch what happens

Tags

(none)

Badge Links

• Experiment - Experiment