WHY DO WE HAVE SEASONS?
The Earth’s Axis is tilted 23.5 degrees
The Earth’s tilted axis causes the Seasons as it revolves around the SUN
Autumn Season
The Earth’s axis is at 90 degrees away from the sun.
The Earth will have 12 hours of day and night on the
Northern and Southern Hemispheres
Winter Season
Summer Season
When the Earth's axis points
away from the Sun,
When the Earth's axis
points toward the Sun,
It is winter in the
Northern Hemisphere.
It is summer in the
Northern Hemisphere.
Spring Season
The Earth’s axis is at 90 degrees away from the sun.
The Earth will have 12 hours of day and night on the
Northern and Southern Hemispheres
The Earth takes 365 ¼ days to complete 1 Revolution around the Sun
http://www.wrh.noaa.gov/fgz/science/season.php?wfo=fgz
J. Haugh Visual Notes/ Noaa Images/ 2012