| A | B |
|---|
| revolve | travels in a closed path |
| rotate | spin |
| orbit | the path the Earth takes |
| axis | imaginary line that passes through the center of Earth and the North and South Pole |
| waxing | when the moon seems to be getting bigger |
| waning | when the moon seems to be getting smaller |
| new moon | when the moon's disk is dark and invisible to us because the moon is between the sun and Earth |
| Waxing Crescent | When we see only a sliver of the moon's disk |
| first quarter | also called Half Moon, when we see one half of the moon's disk (waxing) |
| Waxing Gibbous | when we can see roughly three-quarters of the moon's disk and it happens before a full moon |
| Full Moon | when the moon's disk is light because the Earth is between the sun and the moon |
| Waning Gibbous | when we can see roughly three-quarters of the moon's disk and it happens directly after a full moon |
| Last Quarter | also called Half Moon, when we can see one half of the moon's disk (waning) |
| waning crescent | when can see only a sliver of the moon's disk |
