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Reasons For the Seasons

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by

Lauren Thompson

on 10 September 2013

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Transcript of Reasons For the Seasons

Magee- 1st period
What's Your Angle?
How does the angle of the sunlight that hits Earth affect the seasons?
In the Summer, the Sun is higher in the sky, so the energy we receive from the Sun is more direct. Also, the Sun remains in the sky for longer periods of time. The higher sun and lengthened days result in a larger amount of energy being absorbed by the Earth’s surface, causing temperatures to increase. We lean away from the Sun in the Winter, despite the fact that we're closer to it in distance. The Sun is lower in the sky, therefore the energy distribution is more spread out, and we have shorter days, which means there is less time for the Earth's surface to absorb the heat energy.
During the Summer, Earth is tilted so the Northern hemisphere is towards the Sun. During Winter, the Southern hemisphere is tilted towards the Sun. When it's Autumn in the Northern hemisphere, it's Spring in the Southern hemisphere, and when it's Spring time in the Northern hemisphere, it's Autumn in the Southern hemisphere.

Earth Location and Seasons
By: Lauren Thompson
Reasons For the Seasons
1. Summer is caused by Earth Being closer to the Sun.

2. The tilt of the Earth causes one hemisphere to be closer to the Sun.

3. Seasons happen at the same time everywhere on Earth.

4. The Earth's orbit around the Sun is a highly elongated ellipse.
Misconceptions
How does the Earth's tilt affect the seasons?
The hemisphere that is tilted toward the Sun is warmer because the sunlight travels more directly to the Earth's surface so not as much heat escapes and gets scattered in the atmosphere.
Tilt of the Earth
Sources/ Citation
Research/ Info:
http://esminfo.prenhall.com/science/geoanimations/animations/01_EarthSun_E2.html
http://mrscienceut.net/SeasonsWebQuest.html
http://funnel.sfsu.edu/courses/gm309/labs/seasons/misconceptions.html
http://www.enchantedlearning.com/subjects/astronomy/planets/earth/Seasons.shtml
http://esminfo.prenhall.com/science/geoanimations/animations/01_EarthSun_E2.html
http://www.astronomy.org/programs/seasons/index.html
http://highered.mcgraw-hill.com/sites/007299181x/student_view0/chapter2/seasons_interactive.html
Pictures:
http://www.abcte.org/files/previews/physics/motionsofsunandmoon2.axistilt.gif
http://agrarianurbanite.files.wordpress.com/2010/11/seasons.jpg
http://www.fanpop.com/clubs/josh-shirohige1939/images/32750255/title/4-seasons-wallpaper
https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&docid=ryVLDEyvS4niDM&tbnid=1hX-N-xAxWcABM:&ved=0CAUQjRw&url=http%3A%2F%2Fwww.missionislam.com%2Fdiscover%2Fmisconceptions.htm&ei=sIsvUvD2HrLH4APuq4DADw&psig=AFQjCNHixodjS2Mbw_nms8ULRlOA8NliOA&ust=1378933582373011
https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&docid=86OEAKAaHrjIAM&tbnid=dkaaw8zUBwImUM:&ved=0CAUQjRw&url=http%3A%2F%2Fscience.howstuffworks.com%2Fenvironmental%2Fearth%2Fgeophysics%2Fearth2.htm&ei=bIwvUpKeCe7i4APa04GoDw&psig=AFQjCNHM3ueHa9iGtRqnf8IJi1TICtc2iQ&ust=1378934146751046
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