| The moon is not a planet
because it revolves around the Earth, not the Sun. The
moon is about the size of Mercury.
Because the moon is
close to the Earth, we know quite a bit about it than
about the other planets. Many manned and unmanned space
craft from the United States and Russia have landed on
the moon to study its surface.
The surface of the moon has many craters caused by
being hit by large meteoriods and asteriods.
The moon is much like Earth in sum ways. Its rocks are
similar to Earth rocks. Lava rock from underground
volcano eruptions look like the lava rocks found on
Earth.
The moon has no atmosphere, air or water, to support
life. |