Glencoe Earth Science

Chapter 23: The Sun-Earth-Moon System

Web Links


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Topic: Ellipses

Visit these sites to learn more about orbits and ellipses. Use the information to complete the activity in your book.

How Comets Work

( http://science.howstuffworks.com/comet.htm )
Elliptical Orbits

( http://www.astro-tom.com/technical_data/elliptical_orbits.htm )
Johannes Kepler: The Laws of Planetary Motion

( http://csep10.phys.utk.edu/astr161/lect/history/kepler.html )
Kepler's 1st Law: Orbits are Elliptical

( http://www.windows.ucar.edu/tour/link=/the_universe/uts/kepler1.html&edu=high )

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Topic: Seasons

Visit these sites to learn more about the seasons. Use the information to complete the activity in your book.

The Seasons

( http://csep10.phys.utk.edu/astr161/lect/time/seasons.html )
Here Comes the Sun

( http://vortex.plymouth.edu/sun/sun1.html )
The Seasons Are Different When You Travel Around Our World

( http://hem.passagen.se/farila/year_eng.htm )
Seasons of the Year

( http://www-istp.gsfc.nasa.gov/stargaze/Sseason.htm )

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Topic: Eclipses

Visit these sites to learn more about solar and lunar eclipses. Use the information to complete the activity in your book.

Upcoming Lunar and Solar Eclipses

( http://www.hermit.org/Eclipse/ )
Eclipse Home Page

( http://sunearth.gsfc.nasa.gov/eclipse/eclipse.html )
Sky and Telescope - Eclipses

( http://skyandtelescope.com/observing/objects/eclipses/ )
Lunar Eclipses 2000-2005

( http://www.windows.ucar.edu/cgi-bin/tour.cgi?link=/moon/lunar_eclipse_stats.html&sw=false&sn=324991&d=/moon&edu=mid&br=graphic&cd=false&tour=&fr=f )

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Topic: The Far Side

Visit these sites to learn more about the far side of the Moon. Use the information to complete the activity in your book.

Astronomy Picture of the Day - The Far Side of the Moon

( http://antwrp.gsfc.nasa.gov/apod/ap981008.html )
The Far Side of the Moon

( http://www.solarviews.com/cap/moon/farside.htm )
Far Side of the Moon

( http://en.wikipedia.org/wiki/Far_side_of_the_Moon )
Interactive Map of the Moon

( http://www.penpal.ru/astro/farside.shtml )

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Visit these sites for more information about Rachel Carson and environmental issues.

The Mayan Calendar

( http://webexhibits.org/calendars/calendar-mayan.html )
The Mayan Calendar Date Calculator

( http://mayan.tzolkin.com/cgi-bin/mayancgi.exe?ScreenID=mayancal )
Mayan Script

( http://www.omniglot.com/writing/mayan.htm )
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