All it takes is a can of Crisco (or another brand of vegetable shortening),
an eye dropper and a cup of water.
Each child applies some of the shortening to their forearm.
Once the Crisco is applied, place a few drops of water on top.
The water beads up nicely on top of the Crisco shortening.
This represents the insolubility of oil and water.
I love this shot of my Kinders observing their arms up close.
They remind me of little seal pups all in a row!
One of my Kinders wondered during the discussion if our own Florida manatee has blubber. They actually don't. But I was amazed at her critical thinking on the subject as it relates to our beloved sea cow (who looks a little like a walrus if you think about it).
A great expansion activity on "Blubber" is this experiment I found on the Gulf of Maine Aquarium's site. "Blubber Gloves" is super easy and way cooool, too!