Texas Science Teacher Resource Hub

The Moon doesn't make any light. It reflects sunlight, like a mirror. The bright part of the Moon you see at night is just the half that's facing the Sun. The dark part is the half facing away from the Sun. As the Moon moves around Earth, the angle changes, and we see different amounts of the lit half from where we stand.

This is a really common one. The Moon's phases have nothing to do with Earth's shadow. Phases happen because the Moon moves around Earth, and from where we stand we see different amounts of the lit-up side. Earth's shadow only touches the Moon during a lunar eclipse, which is rare. Regular phases happen every single month.

The Moon is up in the sky during the day a lot of the time. It's just hard to spot because the bright blue sky drowns it out. On a clear afternoon during the first or third quarter phase, you can usually find the Moon right above you. Have kids look up around lunchtime for a week and they'll spot it.

The Moon stays the same shape (a sphere) all the time. What changes is how much of the lit-up side we can see from Earth. When we see a thin crescent, the Moon is still a full ball. We just can't see the dark side. A flashlight in a dark room shining on a basketball helps kids see this. The ball doesn't change shape, but you see different shapes of "lit-up" depending on where you stand.