http://seds.lpl.arizona.edu/nineplanets/nineplanets/

Scroll down and find the planet you are looking for.

Planets Length of Day/Year

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

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

Click on the planets to begin.

http://www.cosmos4kids.com/map.html

http://library.thinkquest.org/28327/

Click on the earth to begin.  Select a planet by clicking it.  Then push “GO” in the center counsel.

http://pds.jpl.nasa.gov/planets/special/mercury.htm

http://pds.jpl.nasa.gov/planets/special/venus.htm

http://pds.jpl.nasa.gov/planets/special/earth.htm

http://pds.jpl.nasa.gov/planets/special/mars.htm

http://pds.jpl.nasa.gov/planets/special/jupiter.htm

http://pds.jpl.nasa.gov/planets/special/saturn.htm

http://pds.jpl.nasa.gov/planets/special/uranus.htm

http://pds.jpl.nasa.gov/planets/special/neptune.htm

http://pds.jpl.nasa.gov/planets/special/pluto.htm

http://nssdc.gsfc.nasa.gov/planetary/factsheet/planet_table_british.html