After doing the Lesson 10 – Interactive Activity, answer this question concerning the video clip on earth sun relationship: Talk about what you noticed about 2 of these 3 aspects (a) where on earth is the sun vertically overhead on June 21, the summer solstice? (b) repeat part (a) for Dec. 21, the winter solstice (c) repeat part (a) for March 21 and Sept. 21, the vernal and autumnal equinoxes. You might want to include notes for this chapter and discuss why the different seasons occur where on earth they occur in terms of the angle of the sun and length of daylight versus length of nighttime hours.
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