1. The Reason for the Seasons!?! January 2016

3. The side facing sun is day, Copyright © 2010 Ryan P. Murphy

4. The side facing sun is day, night is on the other side. Copyright © 2010 Ryan P. Murphy

6. Which direction is the Sun?

9. What time of day was this picture taken?

10. When was this photo taken?

13. Cleopatra’s Needles called obelisks were used to tell time in ancient Egypt.

14. Time of Day

15. Dusk Noon

16. Time of Day

17. Time of Day

19. Time of Day

20. When was this photo taken?

22. At certain times of the year in the arctic circle the sun never fully sets.

24. What’s a syzygy?

25. –The nearly straight-line configuration of three celestial bodies (as the sun, moon, and earth during a solar or lunar eclipse) in a gravitational system. Pronounce at: http://www.howjsay.com/index.php?word=syzygy http://www.howjsay.com/index.php?word=syzygy

27. “Why didn’t the sun go to college?”

28. “It was already really bright.”

31. “Why didn’t the sun go to college?”

32. “It already had millions of Degrees.”

34. Many college students think the earth is closer to the sun in the summer. Copyright © 2010 Ryan P. Murphy

35. Many college students think the earth is closer to the sun in the summer. WRONG! The earth is further away. Copyright © 2010 Ryan P. Murphy

36. The earths orbit is elliptical. Copyright © 2010 Ryan P. Murphy

37. The earths orbit is elliptical. Copyright © 2010 Ryan P. Murphy

38. The earths orbit is elliptical. Copyright © 2010 Ryan P. Murphy 152,400,000 km147,600,000 km

39. The earths orbit is elliptical. Copyright © 2010 Ryan P. Murphy 152,400,000 km147,600,000 km

40. The earths orbit is elliptical. Copyright © 2010 Ryan P. Murphy 152,400,000 km147,600,000 km

41. The earths orbit is elliptical. Copyright © 2010 Ryan P. Murphy 152,400,000 km147,600,000 km

42. More Direct Less Direct Glancing Winter

43. More Direct Less Direct Glancing Summer Winter

44. More Direct Less Direct Glancing Summer Winter

50. Why are Alaska and Canada cold places? Copyright © 2010 Ryan P. Murphy

53. On what latitudes are the warmest temperatures on Earth? Copyright © 2010 Ryan P. Murphy

54. On what latitudes are the warmest temperatures on Earth? Oº degrees Copyright © 2010 Ryan P. Murphy

55. Newgrange, England. –Newgrange as a time-telling device. –Newgrange was constructed over 5,000 years ago. –A place of past astrological, spiritual, religious and ceremonies. –Newgrange is best known for the illumination of its passage and chamber by the winter solstice sun.

56. Newgrange, England. –Newgrange was a time-telling device, constructed over 5,000 years ago. It was a place of past astrological, spiritual, religious and ceremonies. Best known for the illumination of its passage and chamber by the winter solstice sun.

57. Video Link! Winter Solstice at Newgrange in Ireland (Optional) –http://www.youtube.com/watch?v=ngADMns8W78http://www.youtube.com/watch?v=ngADMns8W78

58. This is a 2,300 year old solar observatory in Peru.

60. Is this a winter solstice or summer solstice in the Northern Hemisphere?

64. This is a ski resort in New Zealand during our summer? Our = Northern Hemisphere Copyright © 2010 Ryan P. Murphy

65. The season are caused by three factors.

66. 1.) Revolution of Earth around the Sun.

67. The season are caused by three factors. 1.) Revolution of Earth around the Sun. 2.) Tilt of the Earths axis

68. The season are caused by three factors. 1.) Revolution of Earth around the Sun. 2.) Tilt of the Earths axis 3.) Parallelism of the axis.

69. The season are caused by three factors. 1.) Revolution of Earth around the Sun. 2.) Tilt of the Earths axis 3.) Parallelism of the axis.

70. The season are caused by three factors. 1.) Revolution of Earth around the Sun. 2.) Tilt of the Earths axis 3.) Parallelism of the axis.

71. I “I’ve graduated college.”

72. I “It’s summer because the Earth is closer to the Sun!”

73. I

74. I “What?”

77. Video Link! What causes the seasons? –http://www.youtube.com/watch?v=NweLxtmnzv4http://www.youtube.com/watch?v=NweLxtmnzv4

78. Video Link! Axial Tilt Khan Academy –Optional (Advanced) –http://www.youtube.com/watch?v=05qDIjKevJohttp://www.youtube.com/watch?v=05qDIjKevJo