Lots of fun. Useful for reinforcing concepts of structure, stability, friction, gravity, force, frequency and phase. Allows students not only to read about genetics, but actually observe and manipulate processes at one biological level that affect life at another. Extensive curriculum activities have been developed and tested for this program. Gravitation is a shareware program for Macintosh that allows students to design, build, and operate their own solar systems under the laws of gravitation and planetary motion.
Solar systems can have any number of suns, planets, moons, asteroids, and comets.
Reinforces concepts of mass, gravitational attraction, orbital motion, velocity and acceleration, escape velocity. CyberSky shows the location and movement of the stars, constellations, planets, sun moon at any time and date - past, present, or future. Flexible time-step animation acts like a time machine, speeding up time so students can see motions clearly. Helps students understand how the season arise, how solar eclipses happen and where to view them, why the stars are important to navigation. This is a simple Web site that allows students to view specimens of cells, crystals, insects, etc., at various magnifications.