4) http://www.factmonster.com - Fact Monster is a free reference site for students, teachers, and parents. Get homework help and find facts on thousands of subjects.
5) http://www.ducksters.com - An educational site covering subjects such as history, science, geography, math, and biographies. 6) http://www.whyzz.com - Offers parents kid-ready answers to how the world works whenever and wherever they are asked. Reply to your kids' why questions easily.