Meaning: This sentence describes the movement of bubbles in a liquid, emphasizing their upward direction and gradual speed.
Choice of Words: "Bubbles" are small, round shapes filled with air or gas that float on the surface of a liquid. "Float" means to stay on the surface of a liquid without sinking. "Up" indicates a direction away from the ground or towards the sky. "Slowly" means moving at a gradual or leisurely pace.