University of Colorado
University of Colorado: Ph Et Interactive Simulations: Gravity and Orbits
An interactive simulation that teaches about gravitational force, circular motion, and astronomy by manipulating the sun, earth, moon, and a space station to observe the effects of gravity and orbital paths. This simulation can either be...
TeachEngineering
Teach Engineering: The North (Wall) Star
Celestial navigation is the art and science of finding one's geographic position by means of astronomical observations, particularly by measuring altitudes of celestial objects - sun, moon, planets or stars. This activity starts with a...
NASA
Nasa: Eye Safety During Solar Eclipses
This resource, which is provided for by NASA, gives great information on protecting your eyes during solar eclipses. Your eyes are very difficult to replace. Even when 99% of the Sun's surface is obscured during the partial phases of a...