Association for Library Service to Children (ALSC) and the American Library Association (ALA) have created a wonderful website for children. It contains links to the following subject areas:
Animals, The Arts, History & Biography, Literature & Language, Sciences, Reference Desk, Mathematics and Computers, and Social Sciences.
It also contains sites for parents, caregivers, teachers, and others.
There is great information here! Bookmark it and check it out! The link is below.