- www.mathcats.com ~ This site offers interactive math-related projects, games, writing contests, story problems, even math arts and crafts and a “magic chalkboard,” too.
- www.madsci.org ~ This site says it “represents a collective cranium of scientists providing answers to your questions. For good measure, we provide more than 36,000 answered questions at your fingertips,” and that’s just for starters.
- www.nationalgeographic.com ~ This site’s mission is “inspiring people to care about the planet” and offers everything from free maps, photos, videos, and news stories to articles about animals, the environment, and more.
- www.quizhub.com/quiz/free/f-government.cfm ~ This site invites visitors to pair various constitutional amendments with their their intent.
- www.scholastic.com/bookwizard ~ This site searches 50,000 books by reading level, matches similar books, and lets visitors create their own “customized” book lists.