You may have used a soap solution and a wand to blow bubbles. The bubbles seem to float like astronauts in space. But soap bubbles on Earth experience the same gravity as you do, even though they appear to be weightless.

A soap bubble shows the effects of gravity. As the bubble floats, the soap film thickens and forms a drop at the bottom of the bubble. Then, if it doesn't pop, the bubble sinks to the floor.