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Bill Nye the Science Guy explains why we experience seasons in his classic, goofy way. Bill Nye shows how axis tilts change the earth’s temperatures.

The length of daylight an area gets can also change with the seasons. At the summer solstice, the daytime is the longest it will be all year. At the winter solstice, the day is the shortest it is all year. There are also two equinoxes—one in the spring and one in the fall. At these times, the day and the night are about the same length.

Select an activity below to download the PDF.

Making Connections


Would you prefer to live in a tropical, temperate, or polar region? Why?


Have you read other books about weather or climate? What did you learn from those books that you didn’t in this one?


What weather cycles happen where you live? Can you explain why they happen?

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