Bubbles are made up of gas encased in a liquid. Antibubbles are liquid encased in gas.
You can make antibubbles at home!
You will need:
2 containers (one clear like a glass)
A syringe or dropper
Fill the clear container with water to near the top add some dish soap (a ratio of 1 cup water, 2 teaspoons dish soap works fine) and mix it all around.
In the other container mix 1 cup of water, 4 teaspoons of dish soap, 4 teaspoons of sugar and a few drops of food coloring.
Use the dropper to shoot droplets of the coloured solution into the water and see the antibubbles as they form and pop!
The bubbles probably won’t form every time so here are some tips:
try to shoot the bubbles out fast enough to push some of the mixture under the water but not so fast that the mixture will break up in the water
An angle of about 45 degrees works well for forming the bubbles.
Keep the syringe about X distance from the surface of the water. Too high or too low and the antibubbles might not form
Try making a layer of bubbles by blowing through a straw at the surface of the water. Dropping the coloured mixture through the edges of the bubbles can make antibubbles easier to form.
Cold water works better than warm.
Variation: try adding some sugar syrup to the bottom of the clear container so that the antibubbles sit between the layer of sugary water and normal water and so are easy to see. You can do this by making a sugar solution pouring this in first then slowly topping up with the soapy water and leaving it for a while to settle.
When you push the coloured mixture into the water it brings along some air with it that forms a membrane around the coloured mixture and you get an antibubble!