NASA for middle-school students http://www.nasa.gov/audience/forstudents/5-8/features/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Web Elements...An interactive periodic table with information about each of the elements http://www.webelements.com
Another interactive periodic table of information about the elements http://www.chemicalelements.com
Yet another interactive periodic table of elements. Also some games related to the elements and their chemical symbols. http://education.jlab.org/itselemental/
Periodic Table Live! Loaded with information on each element. http://www.chemeddl.org/collections/ptl/
Earthworm Dissection http://biog-101-104.bio.cornell.edu/BioG101_104/tutorials/animals/earthworm.html
Frog Dissection http://curry.edschool.virginia.edu/go/frog/home.html
Another website related to frog dissections http://froggy.lbl.gov/virtual/
Science related links/activities for kids http://www.sciencespot.net/
Excellent website with information on matter, atoms, elements, chemical reactions, etc. Check it out! http://www.chem4kids.com
Outstanding science trade books for atudents grades K-12 http://www.nsta.org/ostbs05
And yet another interactive periodic table of elements...this one's from Los Alamos National Laboratory. http://periodic.lanl.gov/default.htm
Another interactive periodic table of elements with information on the COST of the element. http://www.chemicool.com
A website filled with weather related information http://www.weather.gov
National Hurricane Center's website http://www.nhc.noaa.gov/
IRIS Seismic Monitor....Information on current seismic activity around the world http://www.iris.edu/seismon/
Cell Organelles http://www.tvdsb.on.ca/westmin/science/snc1w0/cells.htm