Watch as Team FREDNET learns about both Solar and Lunar Eclipses, from an exhibit at the Griffith Observatory.  The Moon passes between the Sun and the Earth about once a month, however, we do not have a full Solar Eclipse that often.  This is because the orbit of the Moon is not in the same plane of orbit as the Earth and the Sun, so with each pass between the Earth and Sun, the shadow of the Moon does not always fall on the Earth; sometime it is above, sometimes below.  The model in the exhibit gives a demonstration.