Imagine the moon as a giant ball being lit up by the sun. - New Moon: The moon is between the Earth and the Sun. We can't see it because the sunlit side is facing away from us, and the dark side is facing us. - Waxing Crescent: As the moon orbits the Earth, it slowly begins to move away from the sun's position. Now, a tiny bit of the sunlit side of the moon is visible to us. This thin sliver of light looks like a crescent shape. - Waxing: The word "waxing" means "growing." The moon is getting bigger because more and more of its sunlit side is becoming visible to us. Think of it like a slice of pizza. At first, you only see a tiny sliver (waxing crescent). As you eat more of the pizza, you see more and more of it (the moon gets bigger). Eventually, you'll have a whole pizza (full moon). The crescent shape is what gives it the name "crescent moon," and "waxing" refers to the fact that the moon is growing in size.