Written by an elementary school teacher from Florida, and aimed at kids in grades K-6, this site contains tons of links to sites under the headings of Science, Social Studies, Language Arts, Reference, Math, Activities, Sites for Teachers, and Clip-Art.

PItsco’s Ask An Expert (no longer available, but the expert’s sites below are) KIDS ARE CURIOUS. Kids ask questions. Lots of questions. Pitsco’s Ask-An-Expert is a site that has a list of various Kid-Friendly sites that will allow them to ask a question of an expert. In some cases, questions are asked via a form on the Pitsco site. […]