Why Are There Seasons?

Yes, it has to do with Earth's tilt, but it's slightly more complicated than that. Mostly, it's about light intensity.
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COOL LINKS & SOURCES

Cars in Snow:
http://commons.wikimedia.org/wiki/Fil...

Dry/Wet image of Senegal:
http://earthobservatory.nasa.gov/Feat...
http://commons.wikimedia.org/wiki/Fil...
Image Right Info:
http://www.usgs.gov/laws/info_policie...

Special Latitude Lines
Arctic Circle:
http://commons.wikimedia.org/wiki/Fil...
Tropic of Cancer:
http://commons.wikimedia.org/wiki/Fil...
Tropic of Capricorn:
http://commons.wikimedia.org/wiki/Fil...
Antarctic Circle:
http://commons.wikimedia.org/wiki/Fil...

Flat Earth Image:
http://commons.wikimedia.org/wiki/Fil...