| A | B |
|---|
| Moon Phases | the shape of the lighted part of the moon |
| Waxing | the phase of the moon in which the visible part is growing larger |
| Waning | the phase of the moon in which the visible part is growing smaller |
| New moon | the phase of the moon in which none of its sunlit half is visible from Earth |
| Full moon | the phase of the moon in which all if its sunlit half is visible from Earth |
| Solar Eclipse | A blocking out of a view of the sun when the Earth passes through the Moon’s shadow |
| Lunar Eclipse | A blocking of a view of the Full Moon when the Moon passes into Earth’s shadow |
| Spring Tide | The greatest changes from high to low tide that occur when the Sun, the Moon and Earth are lined up |
| Neap Tide | The slightest change from high to low tide that occurs when the Sun, the Moon, and the Earth form a right angle |
 | Diagram of Solar Eclipse |
 | Diagram of Lunar Eclipse |
 | Diagram of Spring Tide |
 | Diagram of Neap Tide |
