Across
- 2. when the Moon goes missing
- 7. weaker tide occurring at the quarter moons
- 9. the left half is sunlit
- 10. occurs on December 21 or 22
- 12. the orbit of one object around another object
- 13. occurs before the new moon
- 14. the path an object follows moving around another object
- 16. occurs on June 20 or 21
- 17. the natural satellite of Earth
- 18. the line on which an object rotates
- 20. the last waxing phase
- 21. measures 23.5 degrees from the vertical
- 25. brightest object in the sky
- 26. the lighter part of a shadow
- 27. occurs before the full moon
- 28. when the Sun goes missing
Down
- 1. the first waning phase
- 3. when objects appear to be moving
- 4. the right half is sunlit
- 5. the spin of an object around its axis
- 6. the first waxing phase
- 8. the last waning phase
- 11. the third planet from the Sun
- 15. occurs on March 20 or 21
- 16. stronger tide occurring at new and full moons
- 19. the day when direct rays strike a Tropic line
- 22. the day when direct rays strike the equator
- 23. occurs on September 22 or 23
- 24. the darker part of a shadow