"I'm bored. There's nothing to do," is the refrain heard all summer from kids who couldn't wait for school to get out so they could play instead of work.

Whether it's a rainy day, a busy day for mom and dad, or you just want the kids to give video games a break and do something at least remotely educational, here are 10 of the best websites to keep kids entertained (while they learn a little bit too) during the summer.

1. www.funology.com

True to its name, funology is all about fun! It's also about science, but your kids may not guess that right away. With fun categories like "That's Odd," "Brain Drain," "Boredom Busters," "In The Kitchen," and "Tummy Ticklers," funology has something for everyone.

One of the best things about funology is that while it has plenty of online activities, it also has instructions for tons of science projects and experiments your kids can make both indoors and out.

2. www.seussville.com

In keeping with Dr. Suess's fantastical characters, seussville offers fantastical worlds and games for kids to enjoy. It also encourages reading, spelling and comprehension without the kids ever even realizing that they're learning while they're playing. Seussville can be fun for adults too if you want to sit with younger ones while they explore the site.

3. www.kids.nationalgeographic.com

National Geographic for kids is everything you expect from National Geographic and more. Kids can explore the world online, learn about cultures, geography and nature. There's also some great contests and games for a wide range of ages.

4. www.gamesforthebrain.com

Games for the Brain is just what it says it is, games for kids to challenge and test their brain. From visual to math to word games, these fun games will help keep your kids thinking through the summer while they still have plenty of fun.

5. www.kids.yahoo.com

Yahoo! kids is not as educational as some of the other sites on this list, but it's also packed full of kid-safe games, videos, jokes, music and even e-cards they can send. It has all the best features of the kind of sites that are most popular online, but geared toward and made safe for kids.

6. www.noggin.com

Noggin is geared toward younger children, and is a perfect alternative for your pre-schoolers, but it has some really fun features that also appeal to older kids and adults. (Check out the vintage Sesame Street clips and see how many you can remember!) Simple games, video clips of Nick Jr. shows, coloring pages and other great features, many with learning elements such as pairs, colors, numbers and letters.

7. www.bonus.com

Bonus is great for grade-school kids who want to play games and connect. It offers a safe environment to send messages, although it does require adult assistance to register (free registration). The multi-player games and messaging system means your youngster can check in with friends that are away for the summer.

8. www.cyberkids.com

One of the best features of cyberkids is the creative works gallery where kids can share their works of art, from drawings and videos to poetry and stories. The site also offers some great games you won't find anywhere else, and a long list of links to other great kid sites.

9. www.prongo.com

Prongo is really three great sites in one. It is divided up by age group, including ages 3-6, ages 3-9, and ages 9-12. For each age group there are brainteasers, jokes, games, e-cards and much more.

10. www.scitoys.com

Science toys is a great site for parents and kids to visit together. It lists instructions for making all types of science toys with items you probably have around your house. Make the world's simplest steamboat, a film can cannon or a metal that melts in hot water.

Tammy Gray-Searles is a featured writer for Xomba.com. Read the rest of her work here .