La luna 1
la luna
https://www.youtube.com/watch?v=yHDA_dbsQM8
http://www.faustweb.net/solaris/
https://www.youtube.com/watch?v=GObdG4YB4bE
http://www.raiscuola.rai.it/articoli/la-terra-rotazione-e-
rivoluzione/8813/default.aspxhttps://www.youtube.com/watch?v=L_utBp7Zy0c
