Key Concepts and Themes

--The historical significance of Galileo's observations of the Galilean 
satellites.

--Prior to this time, it was thought that the Earth could not move in orbit 
around the Sun without leaving the Moon behind.  These observations 
proved otherwise.

--KeplerŐs Third Law of Motion can be demonstrated by the observed 
motions of the moons.


Appropriate Grade Levels

Middle School through College.  Students should be able to understand 
what they are seeing.  

Appropriate Classes

Middle and High School Earth Science classes, history of science classes, 
and physics classes studying planetary motion.