Chem4Kids.com [ Kids/Teens ] - Learn about chemistry including matter, atoms, and reactions. Includes online quizzes. http://www.chem4kids.com/

Chemistry [ Kids/Teens ] - Thinkquest site offering an overview of atoms, molecules, phases of matter, acids, bases, and elements. Includes games, quizzes, bibliography, and glossary. http://library.thinkquest.org/J001539/

Chemistry - An Introduction [ Teens/Mature Teens ] - Information, quizzes and activities that provide an introduction to chemistry. Topics include atoms, molecules, gases, liquids, formulas, and the periodic table. http://www.mcwdn.org/chemist/chemist.html

Chemistry and You [ Kids/Teens/Mature Teens ] - European Chemical Industry Council helps students understand how chemistry is present everywhere in our daily life. [Flash required] http://www.chemistryandyou.org/

Chemistry Coach Tutorials [ Teens/Mature Teens ] - Links to a number of site with tutorials, directions, or instruction about chemistry topics including balancing chemical equations, types of reactions, formulas, the mole, stoichiometry, and class information. http://www.chemistrycoach.com/tutorials-2.htm

Chemistry Help Page [ Teens/Mature Teens ] - Online quizzes, notes, and interactive links. http://www.tps.k12.mi.us/staff/eferwerda/Chem_help_page.htm

Chemistry of Tie-Dying [ Teens/Mature Teens ] - Background of the chemistry of dyes as examples of molecules, and the reaction between cotton and dye as a perfect example of a simple chemical reaction. http://www.pburch.net/dyeing/chemistry_reactivedyes_lesson.shtml

Delights of Chemistry - Chemistry Demonstrations Performed in Leeds [ Mature Teens ] - Chemistry demonstrations performed at the University of Leeds. Movies, photos, and text that explain chemical reactions are available within this site. http://www.chem.leeds.ac.uk/delights/

Global Instructional Chemistry [ Mature Teens ] - A collection of resource references on various topics in chemistry. http://www.ch.ic.ac.uk/GIC/

Interactive and Illustrated Chemistry [ Teens/Mature Teens ] - Provides a periodic table with electronegativity, orbitals, and oxidation number. http://profmokeur.ca/chemistry/

Java Applets for Chemistry [ Teens/Mature Teens ] - Java and Shockwave programs allow students to conduct virtual experiments. http://www.edinformatics.com/il/il_chem.htm

Learn Chemistry [ Teens/Mature Teens ] - Tutorials, tests, problems, and tools for learning basic and organic chemistry. http://www.learnchem.net

Mirror Molecules [ Kids/Teens ] - Some molecules come in mirror-image pairs: a right-handed one and a left-handed one. This Smithsonian site helps kids grades 5 and up learn more about the structure of molecules. http://americanhistory.si.edu/kids/molecule/

Polymers: They're Everywhere [ Kids/Teens ] - Explains what polymers are, where they're found, and why they're important. From National Geographic. http://www.nationalgeographic.com/resources/ngo/education/plastics/index.html

The pH Factor [ Kids/Teens ] - Virtual chemistry lab about the pH scale. http://www.miamisci.org/ph/

The Polyquarium [ Mature Teens ] - Explains how some sea animals contain natural polymers which can be used in making everyday items, such as fishing rods and rain coats. Includes sample chemical codes and illustrations. http://www.pslc.ws/macrog/kidsmac/sea/

The Right Chemistry [ Kids/Teens/Mature Teens ] - Canadian site encouraging teachers and students to create chemistry-related online projects in their school. Eligible projects receive funding. Site also contains games, resources and links to chemistry projects that have already been created. http://schoolnet.ca/alasource/e/project.centre/theme/imperial/index.asp

VC2: Your Virtual Chemistry Club [ Teens/Mature Teens ] - Introduces high school students to the challenges and excitement of the molecular science. http://www.chemistry.org/portal/a/c/s/1/acsdisplay.html?DOC=vc2%5cindex.html

Virtual Dating [ Mature Teens ] - Java introduction to different kinds of radioactive dating, including radiocarbon and isochron dating. http://vcourseware5.calstatela.edu/VirtualDating/

What's That Stuff? [ Teens/Mature Teens ] - Explains the chemistry behind food, cleaning products, and everyday items like lipstick and paper. http://pubs.acs.org/cen/whatstuff/stuff.html