Reasons for Seasons

Seasons ,[object Object],http://nix.ksc.nasa.gov/info By the Lunar and Planetary Institute For use in teacher workshops

Rotation vs. Revolution ,[object Object],[object Object],[object Object],[object Object],01/06/11 The Seasons

Solar Heating ,[object Object],[object Object],[object Object]

Day Night Cycle 01/06/11 The Seasons

True color images June December March September http://www.nasa.gov/vision/earth/features/blue_marble.html

What Causes Earth’s Seasons? ,[object Object],[object Object],http://www.lpi.usra.edu/education/skytellers/seasons/about.shtml

Northern Hemisphere Summer More daylight hours, more direct sunlight http://www.lpi.usra.edu/education/skytellers/seasons/about.shtml

Seasons vs. hemispheres ,[object Object]

Seasons ,[object Object],[object Object],[object Object],[object Object]

Seasons Misconception ,[object Object],[object Object],[object Object],[object Object],01/06/11 The Seasons

Seasons Misconception ,[object Object],01/06/11 The Seasons

Earth’s orbit is almost a perfect circle ,[object Object],[object Object]

Equinox ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Solstice ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Daylight Hours Across the Globe Time is indicated as number of hours (h) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Miami Brisbane Nairobi Punta Arenas Nome Singapore Cape Town Seattle Vostok http://www.lpi.usra.edu/education/skytellers/seasons/activities/light.shtml

Reasons for Seasons

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