)Bubbles are formed when gases, such as air or carbon dioxide, are trapped in a liquid. The gas molecules become trapped due to surface tension, which is the force that holds the molecules of a liquid together.
Bubbles are spherical because the surface tension of the liquid pulls equally on all sides, causing the bubble to take on a circular shape. This is the most efficient shape for the bubble to hold the trapped gas molecules.
Yes, bubbles can be created in any liquid as long as there is a gas present to be trapped. However, some liquids, such as water, have a higher surface tension and may produce more stable and long-lasting bubbles compared to other liquids.
Soap and detergent molecules have a hydrophilic (water-loving) end and a hydrophobic (water-repelling) end. When these molecules are added to water, they form a film on the surface of the water with the hydrophobic ends facing inward. This creates a thin layer of water with a higher surface tension, allowing bubbles to form more easily.
Bubbles pop when the surface tension can no longer hold the gas molecules inside. This can happen when the bubble comes into contact with a solid surface, or when the liquid inside the bubble evaporates, causing the surface tension to weaken. Bubbles can also pop due to changes in temperature or atmospheric pressure.