A full moon is when the moon most seen, and a new moon is when the moon is least seen.
evrey day it happens
Each day (night?) a little more of of the moon's surface is illuminated by the sun; thus it becomes brighter and changes from a thin crescent to a full circle of light. It takes about 2 weeks (a...
The first phase is neither, the first moon in the cycle is the waxing crescent and the last is the new moon
waxing means it is getting bigger, which i assume is what you mean. the opposite is waning