This is a fun easy experiment to demonstrate the properties of surface tension.
- a plate
- dish soap
- a toothpick or knife or fork or finger
- add water to a plate
- sprinkle pepper on the water
- dip the toothpick into some dishsoap
- touch the toothpick to the middle of the pepper water
- What did you observe?
- Can you explain what is happening?
- Why does the pepper move so fast?
There are a variety of similar experiments you can conduct…
Surface Tension and Jumping Pepper – Video