**THIS TRIP NEEDS A POINT PERSON** Explore the formation of shadows and investigate interactions between the sun, moon and earth in this hands-on interactive class.

This content is restricted to site members. If you are an existing user, please log in. New users may register below.

Existing Users Log In
   
New User Registration
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
captcha
*Required field