CyberSleuth Kids 
“An Internet Search Guide for the K-12 Student.” Is their slogan, but how good are they? Fabulous. With tons of links to information your student really needs. There’s clipart to make those school projects a lot snazzier, learning software, educational tools like flashcards, math work sheets, and an online word search will help your child out.
For teachers there are at least 1,000 free lesson plans. You will find a search engine to help you and your students find the information they need. Sections are conveniently grouped and linked by subject, for instance, Art & Music, Health, History, Language Arts, and Media.
This site is a handy tool to anyone in school, bookmark this one today.