Phases of the Moon with Oreo Cookies


Students use the frosting of Oreo cookies to visualize the phases of the moon using the contrast of the frosting and cookie to represent light and shadows on the surface of the moon as seen from Earth.


The moon fully orbits around Earth about once every month. During its orbit, we can see the moon in different phases. The phases are controlled by the amount of sunlight reflected off the moon that we can see from Earth at any point during its orbit.