Here are some links to help you with your research:
http://www.kidsastronomy.com/solar_system.htm
http://solarsystem.nasa.gov/kids/index.cfm
http://solarsystem.jpl.nasa.gov/planets/index.cfm
http://nineplanets.org/
http://kids.nineplanets.org/
Create a blog account:
www.blogger.com/start
PLUS do not forget that there are astronomy books that you can use in Ms. Cotta's classroom as well.
