Across
- 1. the point in the horizon diagram that is directly above the observer
- 4. the point in the horizon diagram that is directly below the observer
- 5. the phase of the moon where none of the face of the moon is illuminated
- 8. imaginary line in the sky that runs from north to south
- 10. the phase of the moon where the entire face of the moon is illuminated
- 11. when the percent of the moon illuminated is increasing
- 13. the composition of the moon is this, meaning it has a core, mantle, and crust
- 14. these are the valleys on the lunar surface
Down
- 2. the line that separates day from night on the moon
- 3. less than 50% of the moon is lit
- 6. when the percent of the moon illuminated is decreasing
- 7. more than 50% of the moon is lit
- 8. imaginary line in the sky that runs from east to west
- 9. the edge of the moon
- 12. the darkest part of the lunar landscape
