Astronomy  [slide] 

 - 174 slides :  col., ;  5 X 5 cm. 
<br/><br/> The earth -  The sun -  The solar system 1 -  The solar system 2 -  The solar system 3 -  Concepts of time and theories on the origin of the universe -  Our home galaxy 1 -  Our home galaxy 2 -  Spiral galaxies, exploding galaxies, colliding galaxies, galaxy clusters -  Galaxies -  Observatories and telescopes -  The moon -  The moon -  Time  part 1.  part 2.  part 3.  part 4.  part 5.  part 6.  part 7.  part 8.  part 9.  part 10.  part 11.  part 12.  part 13.  part 14. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy.