Texas Instruments
Texas Instruments: Sands of Time
In this activity, students can use a graphing calculator to find a regression equation and then interpolate the data from the equation using integration. They will explore the length of day during the winter and summer solstice at...
University of Colorado
University of Colorado: Confluence Creations: Chaco Canyon Tour
Take a tour of the Chaco Canyon archaeological site. The map takes you to the many dwellings and important astronomical sites. Virtual tours are available if you have Quick Time.
NASA
Nasa Star Child: A Song for All Seasons
After listening to excerpts from four of the violin concertos from "The Four Seasons" by Italian composer and violinist, Antonio Vivaldi, decide which excerpt was meant to go with which season, and also decide where the earth would be in...
Utah Education Network
Uen: Tracking Sunrise and Sunset
Students will collect, record, and graph the sunrise and sunset times to see how they change throughout the year.
Other
Ancient Ohio Trail: Fort Ancient
Although this is a travel site, the information and detail it contains about Fort Ancient is very scholarly. Included are short videos about the area, and several maps.
NumberNut
Number Nut: Calendar Origins
History and mathematics merge in this lesson that explores the origin of the calendar. Learn how it all got started in this detailed lesson that includes a simple months of the year game and a more challenging time conversion game. Both...
Other
Montana State University: Spring and Fall Equinox
This Montana State University site provides a simple chart on the spring and fall equinox and a description of the process.
NASA
Nasa: Image Science Center: Ask the Space Scientist Earth
Site from NASA contains a collection of 91 questions pertaining to the Earth's atmosphere, magnetic field, ionosphere, rotation and origin of life.
Math Is Fun
Math Is Fun: The Seasons
Learn about the four seasons, when they occur in the northern and southern hemispheres, and why the seasons change as the Earth rotates around the Sun.
University of Wisconsin
University of Wisconsin: Reasons for the Seasons
A brief explanation of the Earth's rotation around the Sun and how it relates to the amount of sunlight the Earth receives, and to the seasons. Includes two questions for students to respond to.