Multiple choice general knowledge science & technology

If all the planets were dropped in a bathtub filled with water, which would be the only one to float?

  1. Earth

  2. Saturn

  3. Uranus

  4. Neptune

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Saturn has the lowest density of all planets (about 0.69 g/cm³), which is less than water's density (1 g/cm³). This means Saturn would float if placed in water. The low density is due to Saturn's composition of mostly hydrogen and helium with no solid surface.