I know it has been a bazillion years since I have posted a Busy Baby Resting Mommy blog post. My girly and I just did something the other day that was worthy of posting for you. :o)
What you'll need...
Container of Water (A cookie sheet with sides might make a great effect
This article on About.com says the
experiment works because..."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 as if by magic."
This is a pretty easy experiment and really simple to understand. So, need to rest up? Give the kiddo a bowl of water, dish soap, and pepper and tell them to go to town!