How long it takes the moon to complete a full cycle from a new moon to the next new moon?1 month1 year1 day

The moon takes approximately one month to complete a full cycle from a new moon to the next new moon. This period is known as a lunar month and is about 29.5 days long.

Here are the steps to understand this:

1. The moon orbits the earth in a counterclockwise direction.
2. As the moon orbits the earth, the sun lights up different parts of the moon. This is what causes the moon to have different phases (new moon, first quarter, full moon, last quarter).
3. A new moon occurs when the moon is between the earth and the sun, and the side of the moon that is lit by the sun is facing away from the earth.
4. As the moon continues its orbit, more and more of the lit side of the moon becomes visible from earth. This is known as waxing.
5. A full moon occurs when the earth is between the moon and the sun, and the side of the moon that is lit by the sun is fully visible from earth.
6. After the full moon, less and less of the lit side of the moon becomes visible from earth. This is known as waning.
7. The cycle ends with a new moon, and then starts again.

So, the moon takes about one month to go from a new moon to the next new moon.