1. Seasons Notes

3. 1 Spring Equinox 2 March 20 or 21 3 Equal amount of daylight & night time hours 4 ~ 12 hours of daylight and night time

5. Spring Daylight hours increasing

6. 1 Summer Solstice 2 June 20 or 21 3 Longest amount of daylight hours 4 ~ 14 hours of daylight

8. Summer Daylight hours decreasing

9. 1 Fall Equinox 2 September 21 or 22 3equal amount of daylight and night time hours 4 ~ 12 hours of daylight and night time hours

11. 12341234 12341234 Fall Daylight hours decreasing

12. 1 Winter Solstice 2 Dec 20 or 21 3 shortest amount of daylight hours 4. ~ 9 to 10 hours of daylight hours

14. Winter Daylight hours increasing

15. Remember…Earth’s orbit is…  Earth’s orbit around the sun is nearly circular, but not a perfect circle!  Earth’s orbit is an ellipse.

16. When are we closest to the sun?  Perihelion: occurs 2 weeks after…  THE WINTER SOLSTICE  January 4 th (this year)

17. When are we farthest from the sun?  Aphelion: occurs 2 weeks after…  THE SUMMER SOLSTICE  July 6 th (this year)

18. IT IS NOT THE DISTANCE THAT WE ARE FROM THE SUN THAT DETERMINES THE SEASONS! Then what is it?