Oklahoma Mesonet
Oklahoma Climatological Survey: The Seasons
Find out what the seasons are and how they change. Through the use of excellent graphics, content explores the Earth's orbit around the sun and how sunlight reaches the earth at equinox and the winter solstice.
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.
Read Works
Read Works: The Longest and Shortest Days
[Free Registration/Login Required] An informational text about the longest and shortest days of the year in the United States. A question sheet is available to help students build skills in reading comprehension.
ClassFlow
Class Flow: Earth and Space the Seasons
[Free Registration/Login Required] This flipchart explores the relationship between the sun and earth and how the seasons happen. Vocabulary of the equinox, solstice, etc. is included.
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...
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.