Reeko's Mad Scientist Lab

Free science projects and experiments for parents, teachers, and children of all ages.
http://www.spartechsoftware.com/reeko/

Edible/Inedible Experiments Archive

Fun and sometimes edible science projects for kids.
http://www.madsci.org/experiments/

Science Activities

From the Ben Franklin Institute, projects for kids 5-12.
http://www.fi.edu/tfi/activity/

Hunkin's Experiments

Cartoons showing how to do hundreds of weird and wonderful things. All experiments from cartoonist and scientist Tim Hunkin.
http://www.hunkinsexperiments.com/

Kitchen Safe Science

A fun way for kids to bring hands-on science into their own homes. All demos are safe and easy, and they come with full explanations.
http://www.angelfire.com/electronic/teacher/

Union Station: Science City Experiment Page

Hands-on science experiments that use common household materials.
http://www.sciencecity.com/experiments.cfm

PathFinder Science Network

Science education programs for students of all ages in biology, chemistry, and earth science. GIS and modeling technologies are used to study student collected data.
http://www.pathfinderscience.net/

Dripstone Experiment

Investigation of stalactites and stalagmites in a home experiment involving epsom salts and water.
http://www.geocities.com/floridaluxurycondo/My_dripstone_experiment.html

ScI-Journal

Online journal of high school and college students' lab reports from their science classes, labs and fairs. A discussion list allows messages about each report to be posted on the site.
http://www.sci-journal.org/

T.W.I.N.K.I.E.S.

Featuring a variety of scientific experiments on this popular snack food.
http://www.twinkiesproject.com/

Neuroscience for Kids

A collection of simple science experiments exploring neuroscience, plus science fair ideas and other activities.
http://faculty.washington.edu/chudler/experi.html

HobbyScience Projects for Kids

A number of ideas for easy science projects for children. Includes many topics.
http://www.hobbyscience.com/

The Mission: A Great Scientific Adventure

Features science games, animated clues and fun quizzes that explain the science of everyday life and the discoveries that lie behind it. Requires free registration.
http://nfbkids.ca/lamission/home_e.php

Worm Watch

Hands on activities with worms to learn about soil and ecosystems.
http://www.naturewatch.ca/english/wormwatch/activities/index.html

Following the Path of Discovery

How to repeat famous science experiments. Also includes a Science Fair project guide, information about scientists and inventors, science trivia, and science jokes.
http://www.juliantrubin.com/bigten/pathdiscovery.html

Resources for Learning

A collection of material and suggestions for schools and kids involved in science projects.
http://www.the-ba.net/the-ba/ResourcesforLearning/

Chemical Experiments for Cubs

List of simple experiments to do with elementary school aged children at home.
http://www.faqs.org/faqs/scouting/leader-hints/section-7.html

Funology

Lots of fun home experiments for kids exploring physics, chemistry, biology and the weather.
http://www.funology.com/laboratory/index.htm

Science Hobbyist

A huge site full of home experiments and science project ideas.
http://www.eskimo.com/~billb/index.html

Sweet Home Arsenic Project

Project investigating the relationship between arsenic levels in soil and the growth of plants.
http://school.cottondew.net/SweetHome/

Little Shop of Physics: Experiments

Dozens of physics experiments using common household items or a computer.
http://littleshop.physics.colostate.edu/OnlineExperiments/OnlineExpts.html

Earth Storm

Contains several weather related science projects done by kids.
http://earthstorm.ocs.ou.edu/for_students/projects.php

Make a Pizza Box Solar Oven

Includes a list of materials, diagrams, and photographs, as well as some suggestions for what to cook in it. Also features an explanation of solar energy terms.
http://www.solarnow.org/pizzabx.htm

Try Science

Experiments ranging from making music with coat hangers to measuring your lung capacity. Contains useful tips for teachers and parents.
http://www.tryscience.org/experiments/experiments_home.html