Chemicals and comics are a perfect match at the Comic Book Periodic Table. By heading to www.uky.edu/Projects/Chemcomics budding chemists can learn the table of periodic elements through comic book characters. All you do is click on an element, and it takes you to a screen where you can see that element used in a comic book. Whether it's krypton in Superman or hydrogen in Metamorpho, you'll find this science resource fun and fascinating. Don't forget to check out nitrogen, where the periodic table will take you back in time to one of the most famous Donald Duck adventures, "The Mad Chemist." This is some serious comic combustion!

So you've mastered all of the letter tiles, crossword puzzles and word searches, and now you're ready to create your own. Then it's time to head out to Puzzlemaker, the Web site that lets you produce puzzles with the latest in Web sophistication. Find your way through the maze and head toward http://puzzlemaker.discoveryeducation.com . Choose from a variety of computer-generated games, including number blocks, math squares and word searches with a hidden message. If you're looking for a puzzle with flair, you can solve a maze from the beautiful hand drawings of the artist named Tesseract. Puzzlemaker is a fun site that you can't pass up.

Here's a site just for you girls-but this isn't frilly stuff. Hop over to the Girl Zone at www.girlzone.com to meet with smart, thinking, active girls who are interested in the really important stuff in life. First, go "aroundtown" to meet girls who have been everywhere and done everything. Explore volunteer work, ideas for your future and world travels. Then be sure to check out "Seen It Heard It" for great music, book and movie reviews from people your own age. And there's more! "Bodyopolis" is the place to stop for the latest scoop on body issues: exercise, nutritious recipes for the lazy, and how to deal with your body's changes. Don't end your voyage without stopping by "innercity" to express yourself. This is a cybertrip you'll want to make again and again.

Daffy Duck is throwing a birthday party, and you're invited. Daffy's 60 years as television's craziest cartoon duck are now being celebrated online. Bring confetti and party horns to http://looneytunes.warnerbros.com/web/kids/kids.jsp and go back in time with Daffy and his Looney Tunes pals. You'll find his biography, filmography and trivia questions. For the games crowd, there's a Daffy puzzle and other multimedia challenges. There are also sound-bites of Daffy's greatest one-liners for you to download and play. Check out the Daffy Duck Web cards or the cyber calendar and help Daffy Duck party in style!

Whether you're working on your math at school or sketching cartoons for fun, the pencil is your helper and a friend you can count on every day. The Pencil Pages pay tribute to your favorite writing tool, and let you find out more about this often overlooked school supply. Did you know that a typical pencil can draw a line that is 35 miles long? Or that pencils can write in zero gravity, upside down and underwater? From ancient Rome to the present, the pencil has been a vital communications tool. By clicking on a pencil, you'll learn about pencil history, production or famous pencil users. You'll even learn how different pencils can be. Ready to become a pencil pal? Doodle your way to www.pencils.com .