Across
- 3. A period of the year that is distinguished by special climate conditions
- 5. The movement responsible for day and night
- 10. Northern Hemisphere season that begins in March
- 11. Earth's farthest point from the Sun
- 13. When every part of the Earth receives 12 hours of daylight
- 14. Month when Earth is closest to the Sun
- 15. Earth's closest point to the Sun
- 16. Southern hemisphere season that begins in December
- 17. North of this line in the Northern hemisphere receives no sunlight in the winter
- 18. The wobbling of the Earth's axis
Down
- 1. The movement responsible for the year
- 2. Sunlight that hits Earth with a low angle of incidence (less than 90 degrees to the surface)
- 4. Invisible line around Earth at 0 degrees latitude
- 6. Location at 90 degrees latitude in the Northern hemisphere
- 7. Sunlight that hits Earth with a high angle of incidence (90 degrees to the surface)
- 8. Shortest day in the Northern hemisphere (2 words)
- 9. Month when Earth is farthest from the Sun
- 11. Earth's ___ of rotation is tilted 23.5 degrees
- 12. The elliptical path the Earth takes around the Sun