Spring, Summer, Autumn, and Winter

By Jenny Sommer

This web page was created as an assignment for my Earth Science Lab from Emporia State University.

Introduction
Spring
Summer
Autumn
Winter
References

Introduction

Many people do not understand why we experience the changein our four seasons, Spring, Summer, Autumn, and Winter.  My web page was created to help you have a better understanding of why we go through the different seasons and what changes we experience here in Kansas.  The changes in seasons occur because of rotation, revolution, and the inclination of Earth on it's axis.  Your location determines how you are going to experience these changes in the seasons.  "The Northern Hemisphere you have Spring, March 21 through June 22; Summer, June 22 through September 23; Autumn,September 23 through December 22; and Winter, December 22 through March22.  The Southern Hemisphere is reversed starting Spring being on September 23"(Vol.24, p 491).

When we go through the different changes in the four seasonswe experience different daylight hours.  In Kansas, summer days are always longer and warmer, because the northern hemisphere is tilted towards the sun. It doesn't get dark until around nine o'clock at night.  When winter is here in Kansas, we have shorter days causing it to get dark around five or six o'clock at night, because the northern hemisphere is tilted away fromthe sun. With less daylight hours and no direct rays from the Sun, it is colder.  The only time we do notexperience this change in daylight hours is when an Equinox occurs. During equinox times the Sun's vertical ray is shining directly on the Earth's equator and neither hemisphere is tilted toward or away from the Sun.  Thismeans that day and night are equal to everyone on Earth. The Spring equinox occurs around March 21 and the Fall equinox around September22.  Continue browsing to find out more about what goes on during the changes in each season.

Spring

Spring is the very first season we come to each new year. Spring starts March 21 and goes up to late June.  Theclimate during this season is very unpredictable.  It goes back and fourth from being cool to warm.  We are in the season of Spring when I created this page. We have had quite a bit of rain this month.  Spring is a very prettymonth because the trees and flowers are starting to bloom.  With Springwe also see all the animal coming out of hibernation.

Summer

Summer starts on June 21 and goes up to late September.This solar eclipse image was taken from:

http://www.hao.ucar.edu/public/slides/slides.html

Summer is the hottest season out of the four to people living in the temperate zones. Summer is where we have our longer days, because of Earth's position inorbit. The Sun tends to be up for longer hours and the farther north of the equator you go the lower in the sky it will appear.  Summer is a very fun season with vacations from work and school. Most people enjoy the sun and participate in outdoor activities such as swimming.  Summer is also a time to mow your lawns and garden!

Autumn

Autumn in Kansas begins on September 22 and goes up to the later part of December.
     An interesting site on changing leaf colors can be found where these leaf images were taken from: http://www.cgs.clemson.edu/leaves.htm
Autumn is a time where the leaves are falling downfrom the trees.  The climate is changing from warm to cool. In the southern hemisphere they would be experiencing spring time!

Winter

Winter begins December 22 and goes up to March 22. Winter is the coldest and darkest season of the four in Kansas.  Why we experience this change is because the northern hemisphere is tilted away from the sun, causing the days to be shorter and rays to be less direct. This results in colder weather.  Winter is the time we see snow, ice, and animals going into hibernation.  In winter we also see the flowers and trees to dormant. In the southern Hemisphere Winter begins on June 22 and ends around September 23.

References

(1996). Autumn. The Encyclopedia Americana. (Vol. 2, p 853). Connecticut: Grolier Incorporated.
(1996). Equinox. The Encyclopedia Americana. (Vol.10, p 537). Connecticut: Grolier Incorporated.
(1996). Spring. The Encyclopedia Americana. (Vol.24, p 491).  Connecticut: Grolier Incorporated.
(1996). Summer. The Encyclopedia Americana. (Vol.26, p 7).  Connecticut: Grolier Incorporated.
(1996). Winter.  The Encyclopedia Americana.(Vol. 29, p 56).  Connecticut: Grolier Incorporated.

If you want to find out more about the four seasons, visit these external web sites:

http://science.cc.uwf.edu/sh/curr/seasons/SEASONS.HTM

http://explorezone.com/earth/seasons.htm

If you have any concerns, comments, or questions please e-mail me at sommerje@esuvm.emporia.edu

This page was created on April 26, 1999

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