Hayward Shoreline Interpretive Center http://www.ebparks.org/parks/hayward
NASA for kids http://www.nasa.gov/audience/forkids/home/index.html
Astronomy site for kids http://www.kidsastronomy.com/
World Wildlife Foundations Site for Kids http://www.wwfcanada.org/satellite/wwfkids/
Lunar View - select the date and see what the moon looked like... http://tycho.usno.navy.mil/vphase.html
Electric Circuits - The Blobz Guide to Electric Circuits http://www.andythelwell.com/blobz/