University of Illinois Extension

What Causes the Seasons?

The Earth and Sun. Photo: NASA

The Earth and Sun. Photo: NASA
Click on the image to view the large version.

Spring, summer, fall and winter. Many places on the Earth have seasons. Others do not. What causes the seasons? Well, it is caused by the movement of the Earth around the sun, the tilt of the Earth, and how high the sun will get in the sky.


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