Well because the moon is grey but the suns light shines on it from a distance so that's why its white
a full moon is when the moon is completely full and completely round. a new moon is when the moon appears to have dissapeared.
Full, large or whole. Maybe the question was meant to be...How would the Earth appear to an observer on the moon during a full moon?
It will appear as a Gibbous moon (3/4 of a full moon).
when it's a full moon.
The moon is a full circle during a full moon. A full moon is also the only time a lunar eclipse can occur.
Full Moon
Full moon
The moon in the days before and after a full moon appear as a gibbous moon. A gibbous moon is anything between a full moon and a half moon.
It appears completely dark during the new moon phase.
the moon is on the far side of the sun.
full moon
it can appear to be a full moon but it will be slightly smaller each day