Christmas vacation is coming up and when it's too cold to play outside and the kids are driving you nuts inside (bored with Christmas gifts already?), here's something totally mesmerizing and fun to do! Microwave a bar of Ivory soap! As the microwave heats the molecules, it begins to grow and grow! It looks like a big, fluffy cloud! Almost like what a corn kernel does when it pops, if you've ever seen that in slow motion. Let it cool and the kids can break it up over the sink and end up with clean, good smelling hands! Watch it work: