Turned out its because the peel is about twice as buoyant as the orange, and there is a little air trapped under the skin as well, but thats not what makes it float.
You ever look at a orange peel? Looks much like cork material, im sure there is alot of air trapped in pockets in the skin.
It might shock OP to learn how submarines work as well.
There is enough air, trapped between the peel and the orange due to gases being released by the fruit to float the orange
That was one theory that this guy tested.
https://www.youtube.com/watch?v=FF87hs1doiM
Turned out its because the peel is about twice as buoyant as the orange, and there is a little air trapped under the skin as well, but thats not what makes it float.
You ever look at a orange peel? Looks much like cork material, im sure there is alot of air trapped in pockets in the skin.
It might shock OP to learn how submarines work as well.
https://www.youtube.com/watch?v=BTis6GioP2g
Also the peel contains oils which float above water