 Welcome back to Kids Fun Science. My name is Ken. Today's experiment is egg in the bottle. As always, adult supervision is required. What you need for this experiment is a milk bottle, a lighter, egg newspaper, or the egg in the bottle kit, which you can see in the description. All right, so here's the first of three experiments. You can see a hard-boiled egg will not go into a standard milk bottle. It just will not fit. So what you do is you take a piece of newspaper and you light it on fire with adult supervision and once you get the piece of paper on fire, you're going to put it inside the bottle so it goes all the way in and then you're going to take your hard-boiled egg and put it on top so it stands up straight. You can see it kind of falls and there it goes. It goes right in right away. Pretty amazing. So I'm going to do it in slow-mo again and explain the science behind it. When the flames inside the bottle become extinguished due to the lack of oxygen, the gas inside the bottle cools. This cooling causes the pressure of the remaining gas inside the bottle to become less than the outside atmospheric pressure. At that point, the atmospheric pressure pushes the egg into the bottle. Other explanations you'll see on the web make an argument that the burning material removes the oxygen through us lowering the pressure inside the bottle. This ignores the fact that each molecule of oxygen removed, a molecule of carbon dioxide or two molecules of carbon monoxide are formed. All right, experiment two of three, which is probably the harder of the experiments, right? So now we want to take the egg out of the bottle. So what we're going to do is we're going to fill the milk bottle up with about a half of wave full of water. As you'll see in just a second, you got the burnt newspaper in there, you got the egg and now to get it out. So what we're going to do is we're going to take a Alka-Seltzer tablet and you can put two of them in there. We'll speed up the process, but I'm going to put one in. You put one in, you got to turn it over quick, up and the tablet came out. So that will not work. You need to tablet to stay in. So that's part of the trick. Take it again, refill some water up, turn it over really quick at the egg to block the hole. You can see the Alka-Seltzer tablet right there. It is now building pressure inside the bottle. So we need that pressure to be built up so it can actually push that egg out. You can start to see the egg is starting to move out, right? Where before it was just kind of sitting there, but the pressure is building up. It is taking a little bit longer than I wanted. It's not as fast as it went in, but we could have put two tablets in would speed up that process. You can see their egg is coming out. We're going to try to keep it in one piece here. And it's having a little bit of a problem. Give it a little bit of shake. Help it out a little bit. And there it goes. Success. So we're able to get the egg back out of the bottle, which is probably the harder experiment of both of them. And there you go. Alright, experiment of three of three. This time we're going to take a birthday candle, put it inside the hard-boiled egg. And this is going to show you non-believers out there that the egg was not sucked into the bottle by lighting the candle on top and then bringing the bottle upside down. It's going to show that it's actually pushed up into the bottle. And so taking away where the gravity might push it in or sucked it in, right? So here we go. We're going to show once you get it set, seal it off so it kind of can extinguish the flame. And once the flame is extinguished, straighten it up. And there it goes. And boom. There it goes. Sucked right in. So I hope you enjoyed this video. Remember to share and like if you enjoyed it. Thanks for watching. Okay, that video seems really interesting. Oh, and that video too.