And Charlie's Making Me Smile: Ivory Soap Explosion

We are a little young for lots of the cool kids science experiments out there, but this demonstration of Charles' Law seemed too cool to put on the back burner.  Get yourself a bar of ivory soap, cut it in half (we didn't, and a nugget was left in the bottom of our tupperware container), throw it in the microwave, and go.  Ours got HUGE after about 1 minute, so we removed and repeated several times.  Be careful, it actually does get pretty hot.  When it cooled a bit, we decided that it looked like snow and had ourselves a nice little snowball fight on the dining room table.  This was a giant mess.  But we smelled good and mom threw us right in the bathtub pre-soaped.  Our doggie Vegas helped mom clean up the mess and ended up blowing soap bubbles for much of the rest of the afternoon.  Hysterical.