X1011294978-00181-44136</DOCNO> Earth, Mercury, and Earth's Moon compared [ Mercury ] [ Back ] [ Next ] Earth, Mercury, and Earth's Moon compared Compared to the Earth, Mercury is about three times closer to the Sun, its diameter is only a third as large, and it has only 6 percent the mass. Mercury is believed to be made mostly of iron and rock and is only a little bigger than the Earth's Moon.
(X1011294978-00181-44136</DOCNO> Earth, Mercury, and Earth's Moon; compared Back; ) (Mercury; is believed; ) (Mercury; to be made; mostly of iron and rock) (Mercury; is; only a little bigger than the Earth's Moon) (it; has; only 6 percent)
X1011294978-00181-44136</DOCNO> Earth, Mercury, and Earth's Moon Mercury Mercury Mercury it
compared Back is believed to be made is has
mostly of iron and rock
only a little bigger than the Earth's Moon
only 6 percent