Antibubble

Okay kiddo, have you ever seen bubbles before? They can be made by blowing air into soap water, and they float around and make things look really cool.

But what if I told you there's something kind of like a bubble, but it's not really a bubble at all? It's called an antibubble!

An antibubble is basically the opposite of a bubble. Instead of having air inside and a liquid outside, an antibubble has liquid inside and air outside. That might sound strange, but it's true!

Here's how it works: imagine you have a bowl of water. If you drop a tiny droplet of a different liquid, like oil or alcohol, into the bowl, it will sink to the bottom because it's heavier than the water. But if you blow air into the bottom of the bowl, the droplet of oil or alcohol will start to rise up through the water.

As it gets closer to the surface, a little bubble of air will start to form around it. But instead of the air being on the inside of the bubble, it's on the outside! The droplet of oil or alcohol is actually suspended inside the bubble of air. And that's an antibubble!

So if you ever see a little ball of liquid that seems to be floating in mid-air, it might be an antibubble. They're pretty cool to see!