Lunar Phases

4. The phase where exactly half of the Moon's surface is illuminated as seen from Earth; appears right after Waning Gibbous.
5. A natural or artificial body that revolves around a planet; the Moon is Earth's.
9. The phase that occurs just before the New Moon; a tiny sliver is visible.
10. The phase when the Moon is not visible because the sunlit side is facing away from Earth.
13. The turning of the Moon on its axis; takes the same time as its revolution.
15. The phase when you see the Moon as a complete circle of light; opposite the New Moon.
16. The force that keeps the Moon moving around the Earth and causes tides.
17. The phase after the Full Moon where less than half of the visible surface is lit.

1. The phase when exactly half of the Moon's surface is illuminated as seen from Earth; appears right after Waxing Crescent.
2. The phase when the Moon is almost completely full, and the illuminated portion is growing.
3. A large, bowl-shaped depression on the surface caused by an impact.
6. The elliptical path of an object (like the Moon) around another object (like Earth).
7. The rise and fall of ocean water caused by the Moon's gravitational pull.
8. The phase visible just after the New Moon; only a small sliver of the right side is lit.
11. The period when the Moon's visible illuminated area is increasing.
12. The degree or amount of light being reflected by the Moon.
13. The time it takes for the Moon to complete one trip around the Earth; about 27.3 days.
14. An astronomical event when one celestial body (like the Moon) moves into the shadow of another (like Earth).