Seasons
An Experimental Internet Based Lesson in Determining the Cause
of Seasons
Copyright 1998 by
James P. Riser
If you know where you are going, you may click the "quick
links" in the chart below.
If you are new here, scroll down as you read.
Scenario:
You are applying for a position (job) as chief research scientist
at the world famous Riser Institute of Research. The institute is known
for only selecting the best applicants as members of their research team.
They also pay the highest salary in the industry, provide the best benefits,
send their team members all over the world, provide free housing, and provide
an annual 30 day paid vacation. This would be a very desirable position.
In order to help evaluate their applicants, the Riser Institute
of Research requires each applicant to complete a research project. You
are paired with one other teammate to determine how well you work with others.
Your research project is described below.
The Project:
You have been given two theories to investigate. Your task is
to determine which of these two theories is the correct theory. You must
look over a selected set of information and devise an experiment (using
only the provided apparatus) to test the two theories. After testing the
theories, you must write up a short paper describing your problem (evaluating
the two theories), describing your experiment, describing your findings,
and describing your conclusions. This paper needs to be printed out and
turned into your evaluator.
The Theories:
Theory 1: Summer occurs on the earth because the earth
is closer to the sun during these months. Winter occurs because the earth
is farther from the sun.
Theory 2: Summer and winter occur on the earth because
of the changing angle at which the sun's light strikes the earth.
The Items Provided:
The only information that you have available for your use is
at the various URLs (links) listed below. Be aware that not all of these
links will help you with your problem.. All are related to your research,
though. You must decide which are the most useful to your team. You may
only use the apparatus listed below.
The Links:
http://www2.wku.edu/geoweb/geog100/conner/ch4.html
http://www.thermomax.com/thermomax/inclinat.html
http://www.circles.org/Round3/Curric/EarthSys/laing-13.14-1.html
http://www.covis.nwu.edu/globalWarming/gevseasons/worksheet.html
http://www.covis.nwu.edu/gev.html
http://www.riserinstituteofresearch.org/helpfulinfo.html
http://www.covis.nwu.edu/Geosciences/projects/GLOBAL_WARMING/climatewatcher.html
http://www.giss.nasa.gov/gpol/abstracts/89.RindPeteet.abs.html
http://www.ngdc.noaa.gov/paleo/milankovitch.html
http://science.coe.uwf.edu/sh/curr/Seasons/SEASONS.HTM
http://www.earthsky.com/1997/es970704.html
http://smart.net/~badastro/bad/seasons.html
http://www.spaceday.com/summer/source.htm
http://www.lalc.k12.ca.us/laep/smart/sunrise/4-7les4.html
http://www.earthsky.com/1997/mi/esmi970104.html
http://www.ucls.uchicago.edu/MartianSunTimes/docs/earth_stats.html
http://davem2.cotf.edu/ete/modules/carbon/efculprits3.html
http://barsoom.msss.com/http/ps/seasons/seasons.html
http://www.circles.org/Round3/Curric/EarthSys/laing-13.15-1.html
http://www.uakron.edu/geography/lrb/intro/energyb/tsld021.htm
http://www.museum.state.il.us:70/exhibits/ice_ages/insolation_graph.html
http://typhoon.covis.nwu.edu/Learning_Sciences/projects/sciviz/GW_Tour/insolation.html
http://web1.arch.hawaii.edu/courses/200/arch214/Sundial/HD/html/climate/sunlight.html
http://csep10.phys.utk.edu/astr161/lect/time/seasons.html
http://hobart.southcom.com.au/~heron/low/noframes/solar.html
Physical apparatus available for
your use:
Protractor |
Meter Stick and Ruler |
Wire Leads (2) with Clips |
Solar Cell (s) |
Volt Meter |
Clamp on Spotlight |
Get Started
You now have access to all of the tools that you need to determine
which theory is true.
Get your plan of attack established and GO FOR IT!