Buoyant

Buoyancy is the upward force that a fluid, like water or air, exerts on an object immersed in it. This force occurs because fluids have pressure that increases with depth; the pressure below the object is higher than above, creating a net upward push. If this buoyant force is equal to or greater than the weight of the object, the object floats or remains suspended. Buoyancy explains why objects like boats float, or why an object feels lighter when submerged in water. It depends on the object's density relative to the fluid and the volume of fluid displaced.