Education.com
Try
Brainzy
Try
Plus
joeu2perez
joeu2perez asks:
Q:

In a bowl of water and pepper on top, why does pepper move away from the soap that has been dipped?

In Topics: Science fair
> 60 days ago

|

Expert

greenprof2
Feb 25, 2013
Subscribe to Expert

What the Expert Says:

I don't think soap will do the trick but you can try it. When you add detergent to water the surface tension of the water is lowered. Water normally bulges up a bit, like what you see when you look at a water drop. When the surface tension is lowered, the water wants to spread out. As the water flattens on the dish, the pepper that is floating on top of the water is carried to the outer edge of the plate.

Did you find this answer useful?
0
yes
0
no
Answer this question