What Does Additional Data Tell You? You now have a second week of sunrise/sunset data. After calculating and graphing photoperiods, answer these questions:
1.
Select one Mystery Class. Describe how the photoperiod has changed since last week.
2.
Look at your own photoperiod. Describe how your photoperiod has changed since last week.
3. Look at all of the sites on your photoperiod graph. Why do you think some lines go up, some go down, and some don't change much? What do the changes you've seen so far tell you about where the sites are located?
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