Earth's Seasons

A computer animation on the reason for the seasons. Voice-over describes the motion of Earth around the sun to show how the sun's light impacts the tilted Earth at different times of the year, causing seasonal changes.

Go To:

Rochester Museum and Science Center, Strasenburgh Planetarium

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Teaching Tips

Teaching Tips

A good video to show after doing a physical seasons modeling activity, for example CLEAN selected resource "Reason for the Seasons":

A summary or guide of what learners should observe in the animation would be helpful to provide to students.

There is background material at

Emphasize that the orbit of the Earth around the sun is only slightly eliptical.

Highlight that on the Spring and Autumn equinox, night and day are equal no matter where on the planet one is-- 12 hours of daylight and 12 hours of night.

Emphasize that the tilt of Earth does not change throughout the year as it orbits the Sun.