Meaning: This sentence describes the behavior of bubbles in water, where they rise to the surface and stay afloat.
Choice of Words: "Bubbles" are small, round objects filled with air or gas and typically found in water or other liquids. "Float" means to stay on the surface of a liquid without sinking. "Above" means higher than something else in a vertical sense. "Water" is a liquid that covers most of the Earth's surface.