In this popular and fun little science experiment you will explore surface tension using pepper and a drop of dish soap. Watch the pepper run in a panic when the dish soap breaks the surface tension.
- Cotton swab
- Liquid dish soap
- Fill the bowl with water.
- Sprinkle a thin layer of pepper onto the water.
- Dip the cotton swab into the liquid dish soap.
- Then dip the end of the cotton swab with the soap into the water.
- Observe the pepper.
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How it Works:
When the pepper is sprinkled in the water, it stays on top because of the surface tension of the water. When the liquid dish soap is introduced, the surface tension breaks sending the pepper in all directions.
Make This A Science Project:
What happens if you use a a different spice such as cinnamon? What happens if you use a different liquid instead of water? Test different things to see if they break the surface tension of the water.
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