| A | B |
|---|
| New Moon means... | The moon is not visible in the sky. Except during a solar eclipse.,  |
| Waxing Crescent means... | The moon is less than one-half illuminated by the sun but less than one quarter illuminated. Occurs when the moon's illumination is increasing.,  |
| First Quarter means... | The moon is one-half illuminated by the sun. Occurs when the moon's illumination is increasing.,  |
| Waxing Gibbous means... | The moon is more than one-half illuminated by the sun but not completely illuminated. Occurs when the moon's illumination is increasing.,  |
| Full Moon means... | The moon is totally visible in the sky. Except during a lunar eclipse.,  |
| Waning Gibbous means... | The moon is more than one-half illuminated by the sun but not completely illuminated. Occurs when the moon's illumination is decreasing.,  |
| Third Quarter means... | The moon is one-half illuminated by the sun. Occurs when the moon's illumination is decreasing.,  |
| Waning Crescent means... | The moon is less than one-half illuminated by the sun but less than one quarter illuminated. Occurs when the moon's illumination is decreasing.,  |
| The "shadow line" moves | <-- To the left. |
| The "shadow line" DOES NOT MOVE | To the right --> |
| Where is the new moon during our night? | On the other side of earth during their day. |
| If none of the visible surface of the moon is illuminated: | New Moon. |
| Increasing = | Waxing. |
| Decreasing = | Waning. |
| The moon's gravity causes the | tides! |
What phase is this?,  | First Quarter! |
What phase is this?,  | Waning Crescent |
What phase is this?,  | Waning Gibbous |
What phase is this?,  | Waxing Gibbous |
What phase is it when the moon is not illuminated?,  | New Moon |
