Chem4Kids

http://www.chem4kids.com/

This site speaks directly to the young scientist. It's an excellent tutorial for children learning scientific concepts and how math is integrated into science. There are no hands-on activities and the student has to have genuine interest in topic because its encyclopedic in its approach.

Molecularium: Kid Site

http://www.molecularium.com/kidsite.html

What lives in the nano world? You'll find out here through interactive activities, a gallery, and more! By Rensselaer’s Nanoscale Science and Engineering Center for Directed Assembly of Nanostructures. You'll need the free Flash Player.

The Yuckiest Site on the Internet

http://yucky.discovery.com/flash/

Learn all about cockroaches, worms, and your gross and cool body! This web site has a great humorous slant to it that makes learning fun! Great graphics and sounds!

http://volcano.und.nodak.edu

VolcanoWorld is an outstanding resource for kids interested in learning about volcanoes. This website contains real-time volcano information including an interactive clickable map of active volcanoes world-wide and remote sensing satellite images. Topics covered at VolcanoWorld include how volcanoes work, submarine volcanoes, planetary volcanoes, career information on becoming a volcanologist, volcanic parks and monuments and volcano,exploration on the moon, Mars and Venus.

For Kids Only- Earth Science Enterprise

http://kids.mtpe.hq.nasa.gov/

This site has many interesting activities for young students to learn about various earth science concepts. An interactive online coloring book is a unique feature of this web site.

National Geographic Kids

http://www.nationalgeographic.com/kids/

The web site for kids to explore the fascinating world of National Geographic. Interactive games and explorations make this Web site very engaging for young students

Cool Science for Curious Kids Cool Science for Curious Kids

http://www.hhmi.org/coolscience/

The Howard Hughes Medical Institute invites curious kids to explore biology at this Web site. Activities include dust exploration, classifying critters, microscopy, plant parts, and more

Brainpop

http://www.brainpop.com/

I use Brainpop all of the time in my classroom. Its animated lessons captivate kids and explain difficult concepts in ways that they can understand. There are quizzes after each animation. It's expensive, but there are always a few good free animations.

Color Matters

http://www.colormatters.com/

Budding artists and anyone interested in color will want to see how color affects our mind and body, its use in design and art, plus lots more. Explains additive and subtractive color systems, how the eye sees colors, and how other cultures view and use colors.

Funology.com

http://www.funology.com/

At Funology, science is all about having fun! But that's not all. Besides fun facts and experiments you can perform, you'll also find crafts, recipes, magic tricks, jokes, and a whole lot more.

How Stuff Works

http://www.howstuffworks.com/

Curious about what makes things tick? How Stuff Works brings you hundreds of articles that cover a wide range of subjects like 3-D graphics, animals, video games, engines, roller coasters, toys, electricity, computers, and much more. Advanced

The Science Explorer

http://www.exploratorium.edu/science_explorer/

Using common household items, make a salt volcano, a roto-coptor, or one of over 25 other projects at this nice site.

Robot Constructor

http://www.channel4.com/science/microsites/R/robots/constructor.html

Construct a virtual robot and use it to collect golden cubes scattered around a variety of hostile zones. Each zone requires a robot with different skills, so choose its power supply, sensors, material and mobile abilities carefully. Advanced and very cool.

The Great Plant Escape

http://urbanext.illinois.edu/gpe/index.html

"Help Detective Leplant and his partners Bud and Sprout unlock the amazing mysteries of plant life." A teacher’s guide is also available. Another great site from the University of Illinois Extension.

Switcheroo Zoo

http://switchzoo.com/

Create crazy animals that could never exist at this surrealistic virtual zoo! I liked building my own habitat.