Astronomy Vocabulary Quiz Crossword
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
 
 
Down: 1) change in direction of the axis, but without any change in tilt--this changes the stars near (or not near) the Pole, but does not affect the seasons (as long as the angle of 23.5 degrees stays the same).4) wobbling around the precessional axis. (This is a change in the angle--1/2 degree one way or the other.) Across: 2) the turning, or spinning, of earth on its axis resulting in day and night. Earth rotates on its axis once every 24 hours. 3) the point between two objects where they balance each other(For example: it is the center of mass where two or more celestial bodies orbit each other).5) Almost all of the energy that drives the various systems (climate systems, ecosystems, hydrologic systems, etc.) found on the Earth that originates from the sun.6) the earth makes one complete orbit around the sun once every 365.26 days.
 

 

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