Across
- 2. high tide
- 4. moon blocked
- 8. hole from impact
- 10. patterns of weather
- 12. dark lava filled craters
- 13. maximum and minimum hours of sunlight
- 16. causes day and night
- 17. causes seasons
- 19. sun blocked
Down
- 1. shrinking
- 3. light shadow
- 5. imaginary line through poles
- 6. dark shadow
- 7. barely noticeable
- 9. orbit
- 11. light colored old craters
- 14. growing
- 15. a small planet collided with earth
- 18. going in shadow