Pluto, which is no longer considered a planet, is made of rock and ice and is smaller than Earth's moon.
Pluto.
Actually, that description fits two known objects in our solar system: Pluto and the asteroid Ceres.
Both Venus and Mercury fit this description. Mercury is the smaller of the two.
the moon
Pieces of rock that strike the surface of a moon or planet are called meteorites.
Earth is a terrestrial planet composed of rock and metal. It has a diverse range of ecosystems that support a wide variety of life forms. It is the only planet known to have liquid water on its surface.
Actually Pluto is even smaller than our moon. The earths natural satellite the moon size is 1/6 of of earth. So now you can may be imagine how big is Pluto compared to earth. Pluto has now been downgraded from a planet to a chunk of rock.
Pluto
Yes. Mars is a dry, rocky planet somewhat smaller than Earth.
Smaller particles of rock are produced from larger particles.
Anything from another planet is extraterrestrial. Moon rock is extraterrestrial.
An asteroid is a rock that is far smaller than a planet or dwarf planet. They have no atmosphere. They may circle a sun or a planet.