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Daylight Duration Investigation: Bar Graph Visualization of Monthly Sunlight Hours

Explore the variation in daylight duration throughout the year in Berkeley using a bar graph visualization exercise. Calculate and graph the hours of daylight for each month, and analyze the longest and shortest days. Understand the global variations in daylight and its correlation with seasons. Read "Wendy and Her Worldwide Weather Watchers" to further enhance your knowledge.

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Daylight Duration Investigation: Bar Graph Visualization of Monthly Sunlight Hours

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  1. Day 10 How Much Sunshine? Investigation 3 part 1

  2. Using a Bar Graph Visualization Exercise 3.1

  3. Lab Notebook, P. 7 9:59 11:02 12:12 13:26 14:23 14:47 14:22 13:23 12:11 10:59 9:58 9:33 Mar Apr May Jun Jul Aug Sep Oct Nov Dec Feb Jan

  4. Average daylight for two years

  5. Average daylight for three years

  6. December 21 • Do we have fewer than 24 hours? • Fewer hours of sunshine • Light + dark hours = 24 Shortest Day Why would someone say that?

  7. Longest Day? • If it’s true that there is a shortest day, is there also a longest day of the year? • Yes, June 21

  8. Today’s Sunlight How many hours of sunlight will we have today? Example: Sunrise 6:24 a.m. Sunset 6:44 p.m. Calculate the amount of sunlight.

  9. Table is the sunrise and sunset times Times were recorded on the 21st each month Sunrise/Sunset Time for 2000

  10. Hours of Daylight • Calculate the hours and minutes of daylight on the 21st of each month. • Make a bar graph to show the amount of daylight month by month

  11. Copy the hours of daylight Make a bar graph to show the amount of daylight month by month Remember that 60 minutes = 1 hour Hours of Daylight

  12. Review the Graph

  13. Review the Graph The amount of daylight over a year in Berkeley?

  14. Review the Graph Days get longer - Jan to Jun Days get shorter - Jun to Dec

  15. Review the Graph Longest Day? Shortest Day?

  16. Review the Graph 12 hours of daylight?

  17. Review the Graph How many hours of sunlight on the longest day? More than 14 hours

  18. Review the Graph How many hours of sunlight on the shortest day? More than 9 hours

  19. Sunlight & Seasons • What season is the longest day? • What season is the shortest day?

  20. Global Daylight • When one location on Earth has 14 hours of daylight, is all the rest of the world having 14 hours of daylight as well? • Is the longest day of the year the same length? • Is the longest day of the year the same day?

  21. Global Daylight • Are the longest days always in the summer? • Are the shortest days always in the winter?

  22. Reading • Turn to pg 12 • Read “Wendy and Her Worldwide Weather Watchers” • Answer the Think Questions on page 16

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