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Vocab.
| Term | Definition |
|---|---|
| Sphere | A rounded circle that's distance from one side to the other is always equal |
| Waxing | Phases of moon cycle in which more of the moon is observable to earth. |
| Waning | Phases of moon cycle in which less of the moon is observable to earth. |
| Solar eclipse | An eclipse in which the sun is obscured by the moon. |
| Lunar eclipse | An eclipse in which the moon appears darkened as it passes through earth's shadow. |
| Crater | Asteroids and meteors leaving a hole shaped mark in the moon |
| Manta | The dark parts of the moon |
| Solstices | The longest and shortest days of the year |
| Equinox | The 2 days of the year in which time length of the day is equal around the earth. |
| Rotation | The process in which a planet spins on it's axis |
| Revolution | The cycle in which the planet goes around the system's star. |