A bubble is a globule of a gas substance in a liquid. In the opposite case, a globule of a liquid in a gas, is called a drop.
Due to the Marangoni effect, bubbles may remain intact when they reach the surface of the immersive substance.
Air bubbles rising from a scuba diver in water
A soap bubble floating in the air
Bubbles of gas rising in a soft drink
A drop or droplet is a small column of liquid, bounded completely or almost completely by free surfaces. A drop may form when liquid accumulates at the end of a tube or other surface boundary, producing a hanging drop called a pendant drop. Drops may also be formed by the condensation of a vapor or by atomization of a larger mass of solid. Water vapor will condense into droplets depending on the temperature. The temperature at which droplets form is called the dew point.
Water drops on a leaf
Blue dye being dropped in a saucer of milk
Impact of a drop of water
Backjet from drop impact