Planets and Moons of the 
Inner Solar System
There are four
planets
in the inner Solar System.
Mercury
Mercury is the first 
planet from the sun.
Mercury has no moons.
Venus
Venus is the second
planet from the sun.
Venus also
has no moons.
Earth
Earth is the third
planet from the sun.
Earth has one moon.
The Moon
Mars
Mars is the fourth
planet from the sun.
Mars has
two moons.
Phobos
and Deimos
[Moons theme music plays.]
[No audio]
