| Comparison aspect | Main idea | Keywords |
|---|---|---|
| Crescent | a small lit part of the Moon | smallpartMoon |
| Quarter | half of the Moon is lit | halfMoon |
| Full moon | the whole face of the Moon facing us is lit. It happens when the Moon is on the opposite side of the Earth from the Sun | wholefacefacinghappens |
| • |
| phasesrepeateverydays |