Here's how it works:

* The Moon doesn't produce its own light. It reflects light from the Sun.

* As the Moon orbits the Earth, the angle at which sunlight hits it changes.

* This changing angle creates the illusion of the Moon going through different phases. We see different amounts of the illuminated side of the Moon as it orbits.

Think of it like this: Imagine shining a flashlight on a ball. As you move the flashlight around, the illuminated portion of the ball changes. That's what happens with the Moon and the Sun's light.

Here's a breakdown of the moon phases:

* New Moon: The Moon is between the Sun and the Earth, so the side facing us is in shadow. We can't see it.

* Waxing Crescent: A sliver of the Moon becomes visible on the right side (from the Northern Hemisphere).

* First Quarter: Half of the Moon is illuminated, with the right half lit.

* Waxing Gibbous: More than half of the Moon is illuminated, growing bigger each night.

* Full Moon: The entire side of the Moon facing us is illuminated.

* Waning Gibbous: More than half of the Moon is illuminated, shrinking each night.

* Last Quarter: Half of the Moon is illuminated, with the left half lit.

* Waning Crescent: A sliver of the Moon is visible on the left side.

It's important to remember that it's not the Earth's shadow falling on the Moon, but rather the changing angle of sunlight hitting the Moon that creates the phases.