 Welcome back to Kids Fun Science. My name is Ken, and today's experiment is the Ivory Soap Experiment. As always, adult supervision is required. What you need for this experiment is Ivory Soap, a Microwave, and some Oven Gloves. So I started off with dial soap here on the left and Ivory Soap on the right, and we're going to have a little quiz here for you. We're going to say, what happens when you put each of these soap in the water? Will they sink or float? So you make a prediction, and we'll see what happens. So I'm going to start off with the Ivory Soap first. I'm going to put it in and it floats. So it floats, and then we put the dial soap in and it sinks. The reason the Ivory Bar of soap floated is it's whipped with lots of air in its production, so it floats in the water. The Ivory first slogan was, it floats. It was introduced in 1891. The other brands of soap there whipped up with that much of air, so therefore they sink. So we started off here with the Ivory Bar of soap. I didn't do the whole thing. I cut about an inch off the end of it, and then I cut that in half. Then I'm going to put it in the microwave for about one minute. So on the way out, you're going to need to use Oven Gloves. Here you go, put it in. I'm only going to go with one piece there. I'm going to put it in, and I'm going to set the microwave for one minute. So here it is. It's starting to go and the plate's spinning. So it's a little bit hard to see, but we'll be able to see the end results. The Ivory soap itself is when it's heated in the microwave, it gets hot and it causes soap to get soft. The microwave beams on the oven excite the water and the air molecules that are inside the soap that causes it to move in the opposite directions from each other, and they vaporize. The vaporization of these molecules causes the tiny air pockets and bubbles trapped inside the soap to rapidly expand. Since the soap has been heated and it's in a soft state, the expanding air and water molecules can easily push out into a new foam-like substance. Although the soap looks vastly different than when we started, the substance of it remains the same. There is no chemical reaction during this experiment, only a physical one. So when you take it out of the microwave, the plate is very, very hot, so make sure you use your Oven Gloves. Now, it's going to cool down pretty quick, but you can just feel it by touching it very quickly and you'll know when it's time to pick it up. When it is cool and you do pick it up, it's this nice little flaky feeling. It's a nice texture and it's the same exact soap that you had in the beginning. What did happen in this demonstration is Charles Law, the volume of gas that increases with temperature. It's got a really cool feel to it. It's flaky. You can make it in two different shapes. You can still wash your hands. And remember, after this experiment, remember to wash your hands so you don't have any substance of soap just sitting on there and that could irritate your eyes or anything like that. I hope you enjoyed this video. Remember to click thumbs up and to subscribe. Thanks for watching.