They were all formed roughly around the same time from the same molecular cloud. This slowly collapsed over time, with the sun being formed at the centre.
All elements that occur in nature occur on Earth, the Sun, and the Moon - but the proportions are different. The main difference is that the Sun is made up mainly of hydrogen and helium; both are relatively scarce on Earth and on the Moon.
Both the Earth and the Moon have a rocky surface, but the Earth has a diverse range of elements and minerals, along with an atmosphere that supports life. The Moon, on the other hand, lacks an atmosphere and has a surface covered in craters, rock fragments, and soil called regolith.
rocks
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Nothing. Mercury does not have a moon.
they are all spherical in shape
twoparts of the moon
Many of the rocks of the Moon are described as breccias, that is they are formed from pieces of older rocks. Various types of breccia occur on Earth too, for instance in volcanic regions. Basalt is also common on the Moon, and this is also true of Earth. The Moon has lots of the mineral feldspar, which is also the commonest of the Earth rock forming minerals.
Our Earth has only the one moon.
the sun
The Earth has only 1 moon.
The Moon gives the Earth tides and the Earth keeps the Moon orbiting the Earth because of the gravitational pull.