- Simply Science - A program that meets elementary science benchmarks, designed by Oregon teacher, Barbara Bannister.
- The Science Learning Network - A project of the National Science Foundation.
- The Thinking Fountain - Lots of science activities from the Science Museum of Minnesota.
- Science Fairs Homepage - Ideas for science projects, for elementary, intermediate and senior levels - "You never know where a science fair project can take you."
- Science Fair Project Resource Guide - Many examples, samples and ideas for how to do a science fair project.
- Science Hobbyist - Science fair ideas, science demos, science museums and more science stuff.
- Kids' Earth & Sky - From Earth & Sky Radio Series.
- "Try This at Home" from PBS's Newton's Apple - Simple science experiments and activities from the PBS series.
- Mad Scientist Network Experiments, Edible and Inedible Experiments. - From Washington University Medical School, Saint Louis, Missouri.
- Science Buddies - a non-profit organization that focuses on science tools for students in grades Kindergarten through 12th.