Across
- 3. When day and night are the same length
- 4. When the Sun reaches either its highest or lowest point in the sky for the year
- 5. illuminated area of the moon is increasing
- 6. illuminated area of the moon is decreasing
- 9. 100% of moon is illuminated
- 10. 1% to 49% of moon is illuminated
Down
- 1. Earth rotates on one at 23.5 degrees
- 2. An object orbital motion around another object
- 7. 51% to 99% of moon is illuminated
- 8. Circular movement of an object around an axis