Lunar Cycle

Horizontal Words

1. Phase after 3rd quarter (15)
3. When the Moon, Earth, and Sun line up (in that order) (13)
5. The change of the appearance of the Moon in the sky as visible from Earth (11)
7. Illuminated portion of the moon visible from Earth decreasing (6)
9. Phase after full moon (14)
11. When the Earth, Moon, and Sun line up (in that order) (13)
13. Force that pulls objects with mass together (7)
15. Similar/related to orbit (10)
17. Effect of the Moon and Sun's pull on Earth's oceans (5)

Vertical Words

2. Illuminated portion of the moon visible from Earth increasing (6)
4. Phase after new moon (15)
6. Stream of charged particles from the sun (10)
8. Phase after 1rst quarter (14)
10. Tide that happens during a full moon or new moon (11)
12. Because only one side of the moon ever faces Earth, it is... (14)
14. The spinning of an object around it's axis (8)
16. Boundary of the heliosphere (10)