Q: What causes the seasons?

January 2007
Science & Children;Jan2007, Vol. 44 Issue 5, p54
Academic Journal
The article presents a lesson for the classroom regarding the cause of the seasons. The tilt of the Earth is what causes the seasons and uneven distribution of sunlight on the Earth keeps the poles cold and the equator warm. Sunlight hitting the equator is much more concentrated than sunlight hitting the poles, so the equator is always going to be warmer than the poles. The Earth does not always tilt in the same direction which means that once the earth is halfway through its precession, summer falls in January in the northern hemisphere. However, it takes about 26,000 years for the tilt of the Earth to complete one precession.


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