GPS Coordinates - Find latitude and longitude from an address, or find an address from latitude and longitude.
IXL - Learning website, broken down by grade level and subject. Subjects include math, language arts, science, and social studies. Subjects are taught using overview and exercises.
Smithsonian - Official Smithsonian website. Learn and explore tab has links for educators and students. Students can explore the museums, and watch the animals at the zoo on live webcams.
National Archives - Tab for educators includes primary document sources and tools for teaching. Also includes and explore our records tab, with options to search the National Archives catalog.
Cells Alive - allows students to manipulate and play with cells including interactive cell models. Also includes classroom tools like quizzes and power points.