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| 1. | this is a large planet composed of gases (2 Words) |
| 2. | this is an Earth-like, or rocky planet (2 Words) |
| 3. | this is an object that is a satellite of another solar system body |
| 5. | this term describes when less and less of the moon appears illuminated over time |
| 6. | this section of the solar system contains Pluto, Eris, and many other icy solar system bodies beyond Neptune's orbit (2 Words) |
| 8. | this term describes when the moon is not illuminated at all (2 Words) |
| 9. | these are the dark areas on the moon |
| 11. | this term describes when less than half of the moon is illuminated from our point of view |
| 15. | this term describes when more than half of the moon is illuminated from our point of view |
| 16. | this term describes when exactly half of the moon is illuminated from our point of view |
| 17. | this is a round solar system body that orbits the sun and has cleared out its own orbit |
| 18. | this term describes when an object is at its highest point in the sky |
| 19. | this is a small ice and dust solar system body |
| 21. | these structures on the moon are silimar to valleys or grooves |
| 23. | these are lines on the moon that are gathered around craters like flower petals |