Planet Research Sites

http://pds.jpl.nasa.gov/planets/

http://www.frontiernet.net/~kidpower/astronomy.html

http://www.seds.org/billa/tnp/

http://kids.mfsc.nasa.gov/space/

http://www.teachnet-lab.org/ps101/mrspluso/science.htm

Great Search Engine:

http://www.kidsclick.org