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

Science Hobbyist [ Kids/Teens/Mature Teens ] - A huge site full of home experiments and science project ideas. http://www.eskimo.com/~billb/index.html

Sweet Home Arsenic Project [ Teens/Mature Teens ] - Project investigating the relationship between arsenic levels in soil and the growth of plants. http://school.cottondew.net/SweetHome/

T.W.I.N.K.I.E.S. [ Kids/Teens ] - Featuring a variety of scientific experiments on this popular snack food. http://www.twinkiesproject.com/

The Mission: A Great Scientific Adventure [ Kids ] - 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

Try Science [ Kids ] - 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

Union Station: Science City Experiment Page [ Kids ] - Hands-on science experiments that use common household materials. http://www.sciencecity.com/experiments.cfm

Worm Watch [ Kids ] - Hands on activities with worms to learn about soil and ecosystems. http://www.naturewatch.ca/english/wormwatch/activities/index.html