Earth-Moon-Sun Notes

The point: the Moon is a ball of rock, which shines because Sun lights it up. The directions from Sun and Earth to Moon make it seem to change shape in the sky. Remind them how, when Sun shines on Earth, it is light (daytime) on half of Earth, and dark on the other half. So it is on the Moon, Sun can only make one-half shine, the other is dark. ................
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