Why does planet Earth experience seasons?

Gnomon

The earth's axis, on which it spins every day, is not parallel to the axis of its orbit around the sun. So the earth tilts with respect to its orbit around the sun. This means that at one time in the orbit (around December) the South Pole is tilting towards the Sun, causing Summer in the Southern Hemisphere and Winter in the North. At another time (June) the North end tilts towards the Sun, causing Summer in the North and Winter in the South. Jul 14 02, 10:23 PM

Son of The Household Cavalry

It was alright until Vivaldi came along and now we have got four of them. Jul 14 02, 11:46 PM

Brainy Blonde

It doesn't in my part of the world. Australia has the wet and the dry, we have the cold and the hot. The hot only lasts for a few weeks, so we mostly have only cold!!!! LOL!!! Jul 15 02, 1:53 AM

Barrow boy

I think that Brainy Blonde is on to something. Just because we live in the temperate latitudes we tend to think that there are the four seasons, a hot season, a cold season and the intervening seasons which are importants as they herald the beginning and end of agricutural cycles. But for much of Central Africa, South America and Asia it's always hot and there are just two seasons - dry and rainy. These are the latitudes where the earth's tilt is least noticed. Jul 15 02, 10:43 AM

_princess_007

As the earth spins on its axis, producing night and day, it also moves about the sun in an elliptical (elongated circle) orbit that requires about 365 1/4 days to complete. The earth's spin axis is tilted with respect to its orbital plane. This is what causes the seasons. When the Earth's axis points towards the Sun, it is summer for that hemisphere. When the Earth's axis points away, winter can be expected. http://www.wrh.noaa.gov/fgz/science/season.php?wfo=fgz Nov 17 06, 3:59 AM

diduknowthat

The earth is on a tilt of 23.5 degrees. So at different times the earth has the sun light focased on different areas all ways between tropic of cancer, and tropic of capricorn. If you are on the north pole then somt times you might have 24 7 daylight and sometimes 24 7 darkness. If you are farther from the equatour then it will be colder. But remember it has nothing to do of how far away we are from the sun because a law in nature makes it that planets can't orbit in a perfect circle. http://en.wikipedia.org/wiki/Season Oct 17 08, 10:24 AM

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