What causes seasons?

Caleb

 
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Caleb
by Caleb Wooley - Wednesday, 24 October 2012, 11:39 AM
 

As the earth spins, it is also tilts on it's axes. When the Northern Hemisphere is leaning torward the sun which gives us summer, the warmer time of the year. Now when It tilts the other way that gives us winter, the coldest part.