Across
- 1. increasing light
- 5. cold shorter days and longer nights
- 7. equal days and warmer
- 9. shortest day of the year December 21-22
- 12. moon passes between sun and earth
- 15. all of the moon is visible from Earth
- 16. invisible line dividing earth into north and south
- 18. earth covers the moon from the sun
- 19. 12 hour day and night September 22-23
- 20. "dirty snowball"
- 21. none of the moon is visible from Earth
Down
- 2. large rocks in space
- 3. the difference between low tide and high tide is the greatest
- 4. "shooting star"
- 6. decreasing light
- 8. turning or spinning on an axis
- 10. longest day of the year June 21-22
- 11. the difference between low tide and high tide is the greatest
- 13. warmer/hot longer days and shorter nights
- 14. 12 hour day and night march 21-22
- 15. equal days and cooler weather
- 17. moving completely around another object