http://www.nasa.gov/ NASA site
http://science.hq.nasa.gov/education/index.html
http://observe.arc.nasa.gov/nasa/core.shtml.html
http://portal.rosa.ro/cooperare.php Agentia Spatiala Romana
http://www.exploratorium.edu/ronh/age/index.html interesting links
http://www2.nsta.org/programs/tapestry/projectwebs.asp NSTA link
http://teachspacescience.stsci.edu/cgi-bin/search.plex?keywords=%22electromagnetic+spectrum%22&mode=basic&bgrade=ms&btopic=space&shortcut=2
http://www.nasa.gov/audience/foreducators/topnav/subjects/physicalscience/Physics.html Physics
http://www.grc.nasa.gov/WWW/K-12/airplane/fluden.html
http://exploration.grc.nasa.gov/education/rocket/rktbot.html botle rocket
http://www.grc.nasa.gov/WWW/K-12/FoilSim/index.html foil sim
http://www.grc.nasa.gov/WWW/K-12/TRC/Aeronautics/Musical_Tube.html MusicalTube
http://www.grc.nasa.gov/WWW/K-12/Summer_Training/FranktonES/inflating_balloon_activity.html InflatingBallon
http://exploration.grc.nasa.gov/education/rocket/bgmr.html RocketGuide
http://www.shatters.net/celestia/ CELESTIA FREE soft for download
http://www.nineplanets.org/ the nine planets
http://hubblesite.org/ HUBBLE SITE !!!!!
http://cse.ssl.berkeley.edu/light/program.html The Light
http://www.exploratorium.edu/ronh/weight/
http://amazing-space.stsci.edu/ Amazing Space
http://www.earthkam.ucsd.edu/public/educators/activities/ EARTHKAM
http://www.bscs.org/
http://www.journeynorth.org/