Curated OER
Kepler's Third Law
Students use Kepler's third law to derive the velocity in a circular orbit of any radius, and identify the Earth escape velocity.
Nine Planets
The Nine Planets: The Moon
Explore the mythology, structure, observational history, gravitational force, and orbit of Earth's Moon.
Nine Planets
The Eight Planets: Earth
Excellent Eight Planets site that provides a vast amount of information about planet Earth. Very comprehensive and complete site.
University of Texas at Austin
The University of Texas Mc Donald Observatory: Earth
Learn interesting information about the Earth, the largest of the "terrestrial" planets.
Nine Planets
The Nine Planets: Asteroids
A plethora of information about Asteroids. This site provides lots of in-text links to information, pictures of asteroids, a table full of information about asteroids, as well as links to more information about asteroids.