Uranus is the second-least dense planet:
This means that the planet would float in a pool, provided it were roughly 60,000 km wide. With a mean density of 1.27 g/cm3, Uranus has the second-lowest density of any planet in the Solar System.
Which planet will float on water?
Saturn could float in water because it is mostly made of gas. (Earth is made of rocks and stuff.) It is very windy on Saturn.
Is Uranus water Yes or no?
Structure. Uranus is one of two ice giants in the outer solar system (the other is Neptune). Most (80% or more) of the planet's mass is made up of a hot dense fluid of "icy" materials – water, methane, and ammonia – above a small rocky core.
