Math Is Fun
Math Is Fun: A Day
How long is a day? What do most children do during certain hours of the day? What is day? This site offers the answers to these questions, lists the days of the week, and provides a hour-by-hour listing of what a typical kid's day...
PBS
Pbs Learning Media: Giving Rise to the Jet Stream
This interactive activity from NOVA Online uses animation and graphics to offer a detailed explanation of the jet stream. A thorough account is given of the role played by the Sun's heat and Earth's shape and rotation, among other factors.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Kepler System Model
This site from Open Source Physics offers a file with a simulation of Kepler's theory of planetary motion, tested with the Earth rotating around the sun and another planet of the user's choosing. The download requires Java.
BioEd Online
Bio Ed Online: Sleep and Circadian Rhythms
The following lessons help students from grades 6-8 understand sleep and circadian rhythms. Lesson topics iinclude: day and night, seasons, sundails, clocks, sleep and sleep patterns and sleeping in space.
Other
Bad Astronomy/phil Plait: Tides and Why Our Days Are Getting Longer
Why does the Moon always shows the same face to the Earth? Why is the Moon's rotation period the same as the length of time it takes to orbit the Earth? Why are there two tides a day? These questions and more are answered here.
NASA
Nasa: From Stargazers to Starships: The Calendar
A lesson plan that gives an overview of solar and lunar calendars, their history and lore. Also, of the day and the month, and their relations to the rotational period of the Earth and the orbital period of the Moon.For versions in...