This is an image of the surface of Pluto.
Image from: NASA
Pluto's Surface and Interior
The surface of Pluto is made of two different parts. It has an icy part and a non-icy part (the non-icy part may be some sort of rock). The icy part on Pluto though isn't ice made out of water; it's ice made out of frozen nitrogen!
Pluto is so far away that is it very hard to see the planet, so we can't tell how much of the surface is covered with ice. It will take a mission to Pluto to sort some of these things out!
The interior of Pluto may also be made of ice and rock.
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