Cheryl van Tilburg's List: Science Sites for Elementary Students

Absolutely amazing image galleries, activities, and feature articles. Lets you see the world REALLY close up.

A repository of information on all things earth-related: satellite images, reference, web-basedd experiments, and featured stories on things like volcanoes, cities at night, natural hazards, and ecological controversies.

This is a really fun and useful website. You can search it for articles about how things work -- in everything from science and computers to business and gardening. There's also a weekly newsletter and "fact of the day."

Fun, authoritative website that lets students explore cool questions in science. Brought to you by the Howard Hughes Medical Institute.

London's Science Museum's hugely entertaining (and educational) site lets you learn about scientific properties while trying to manuver a spring through an obstacle course. Multiple levels for different ages. You can also create your own obstacle courses and share them with friends.

Society for Science and the Public runs this website that's full of science games, activities, and handy information for science students. There's also a teacher section.

According to Bill Ferris of the Instructify blog: "Their 'Primarily for Students' page is ...pretty text-heavy, especially for their resources geared toward younger learners. That said, the content itself more than makes up for any graphical deficiencies. And after you check out the materials on the NOAA website, you’ll be able to overcome the conversational deficiencies of folks who lead with, “So how about this weather?”