Across
- 4. The longest and shortest days of the year
- 8. A planet's natural satellite
- 10. The rotation of the earth on its axis
- 13. The shifting of the earth's axis over a long period of time
- 15. When the sun is blocked by the moon
- 16. The earth's travel around the sun
Down
- 1. The moon as it gets smaller
- 2. The second layer of the atmosphere
- 3. A star's natural satellite
- 5. Days of the year in spring and autumn which have equal day and night lengths
- 6. Relating to the moon
- 7. The edge of your view
- 9. The gases and particles surrounding the earth
- 11. The moon as it gets larger
- 12. The fullest phase of the moon that is not a full moon
- 14. Relating to the sun