1. They are both round
2. They are both planets
3. They both orbit something
I do know they have water. Moon has water at the poles on top and underground
A lot of basalt, a common volcanic rock. This might be #1 among things the earth and moon share in common.
they both have layers inside
The noun 'moon' is a common noun as a general word for any moon of any planet.The moon that is a satellite of the planet Earth is a proper noun as a word for a specific moon. The moons of other planets have individual names such as Mars' moon Phobos, or Neptune's moon Triton. The planet Earth's moon is simply called The Moon.
When the earth is between the moon and the sun, a full moon occurs. In the less common instance when the Earth is between the moon and the sun and all three are in line, a lunar eclipse occurs.
They both orbit the Sun
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Nothing. Mercury does not have a moon.
A lot of basalt, a common volcanic rock. This might be #1 among things the earth and moon share in common.
the sun
The Moon gives the Earth tides and the Earth keeps the Moon orbiting the Earth because of the gravitational pull.
They have no plants or animals
The moon is way smaller than the earth and its gravity level is lower. Which makes people weigh less on the moon.
The moon orbits the Earth because it is closer and smaller than us.
they both have layers inside
the sun
The noun 'moon' is a common noun as a general word for any moon of any planet.The moon that is a satellite of the planet Earth is a proper noun as a word for a specific moon. The moons of other planets have individual names such as Mars' moon Phobos, or Neptune's moon Triton. The planet Earth's moon is simply called The Moon.
Earth and moon orbit their common center of mass every 27.32 days.