Free online sources for science fair experiments and project ideas:
NASA’s Jet Propulsion Laboratory provides a guide (videos and transcripts) on how to do a Science Fair Project. Also included are activities by school grade on many topics, not just space sciences.
Naked Scientists from the University of Cambridge features “kitchen science experiments.”
The National Oceanic and Atmospheric Administration (NOAA) suggests a number of topics for a weather-related science fair project-projects that test a hypothesis, that review what we already know and that find relationships in the data.
The University of Kansas has gathered a number of online resources for science classes, including links to Science Games and Experiments.
Science Fair Adventure offers many projects on a variety of topics.
The US Energy Information Administration has Science Fair Experiments for teachers organized by grade level.
The Environmental Protection Agency has science fair ideas related to the environment.
The National Energy Education Development has energy science related projects ranked by difficulty.
The Internet Public Library has a resource guide for creating a science fair project. It is a good starting point, with sections that offer help in selecting a topic and how to complete your project.
These websites can help you with your science research:
The American Museum of Natural History has a science website just for kids.
National Geographic offers current science news (an email address is needed to register for the site)
The Library of Congress has a site dedicated to fun science facts called Everyday Mysteries.
The U.S. Energy Information Administration has a number of experiments organized by grades - - Primary Experiments (Grades K-3), Elementary Experiments (Grades 4-7), Intermediate Experiments (Grades 6-9), Secondary Experiments (Grades 9-12)
NASA’s Robotics Alliance Project provides robotics-related educational materials - based on grade level. NASA is no longer updating this page, but it still has useful links. This is the link for the new site.