I chose the Ivory Soap Experiment from Housing a Forest.
In a nutshell, a bar of ivory soap has a bit of air, unlike other bars of soap, so it floats while other bars of soap sink.
Now to pop it into the microwave for about 2 minutes...
and tada! We got two fluffy-looking piles of ivory soap.
Next up we decided to make the fluffy bathtub paint from the same site.
First up is crumbling the "fluffy" soap for the blender.
hiding from the blender...
We blended and colored and stirred and poured and were finally ready to hit the tub!
It was supposed to look like this but...
most ended up looking like this after it cooled off. That's OK. We dumped it all out and they mixed and swam and painted and whatever else with the clumps of colored ivory soap.