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

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Presentation on theme: "Seasons Notes. 1 Spring Equinox 2 March 20 or 21 3 Equal amount of daylight & night time hours 4 ~ 12 hours of daylight and night time."— Presentation transcript:

1 Seasons Notes

2

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

4

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

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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

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11 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

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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?


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