American Library Association - A list of recommended web sites for children on the topic of science experiments.
Beakman's Electric Motor - Details and diagrams on how to build a working electric motor with minimal parts. Also links to extra science experiments for children.
Eggs Across the Net - 2002 Class to class project involving raw eggs. Results are posted on the web.
Fizzics Education - Free science experiments that can be done in class or at home using step by step instructions. Also provides links to other science websites.
Fun Science Gallery - Activities and experiments devoted to the amateur scientist. Teachers and students also will find it useful.
Home Experiments - A collection of experiments you can try at home.
JDW's Hobby Electronics - Provides links to online retailers of electronics and other science-based kits of all types. Also provides details of a number of projects that can be tried at home.
Kitchen Science Experiments - Provides details of over a hundred science experiments to do at home, each with instructions, what to expect and an explanation of the basic scientific principles involved.
LeisureIdeas - Easy science experiments and demonstrations to do at home using readily available materials.
Nexus Research Group - NPBHS - New Zealand's only High School based research lab. Volunteers become part of on-going scientific investigations as a researcher, programmer or technician. Interactive pages and fun experiments available.
PASCO: Free Online Experiments - Covering physics, biology, chemistry, earth science, environmental science and middle school science.
Radiation Detection - Interesting experiments one can perform with homemade radiation detectors, and how to build them.
Robert Krampf - Provides a range of science resources including a free experiment of the week newsletter and a large number of science experiment videos.
Science Castle - Virtual online school where users can submit science experiments, read the latest news about science, participate in discussions, chat, design their profile and have fun.
Science Experiments Using Data Loggers and Oscilloscopes - A library of physics, chemistry and biology experiments. Examples include measuring the speed of sound, pH of drinks, magnetic induction and the discharge of batteries.
Science Experiments You Can Do - A number of reasonably simple experiments and demonstrations that can be performed by kids, teachers and hobbyists.
Science Fair and Project Ideas - A collection of 1850 ideas for science projects and ideas, the site offers advice on undertaking a project, the types of projects, and advice on completing this type of task
Science Hobbyist - A growing collection of papers on physical science projects for all ages.
Science Project - Science projects and kits for all ages. Membership required to view most projects.
Science, Science Projects and How Things Work - This site tries to answer some of the questions asked by inquisitive minds. A number of science projects and experiments are included.
Science Toys - How to make toys (and projects) that demonstrate scientific principles using simple tools and equipment.
The Scientific Method - In-depth discussion of the concepts of scientific research and how to conduct experiments so as to provide valid results.
Solar Electric Panel Plans - Do it yourself instructions for building a low cost, high output, commercial quality, photovoltaic panel for science experiments
Vicki Cobb's Science for Kids - Some experiments to do. Books which includes these experiments are for sale on the site.
A and B Scott Organic Chemistry - Comprehensive presentation of isomers at high school level, as an example of one package from Scott Visual Chemistry; description of software can be found on a linked site.
Backyard Chemistry - Amateur chemist describes experiments and synthesis plans which use only easily available chemicals.
Chemistry Demonstrations - Chemistry demonstrations performed at the School of Chemistry, University of Leeds.