World Factbook-A wealth of facts and figures about every country in the world. Compiled by the United States Central Intelligence Agency.
National Geographic-Use "Find a Place" for maps and a digest of information on every country. Searchable and zoomable maps, including physical/satellite, climate, political and cultural. Country flags, facts, and demographic information.
Hyperhistory Online-Timelines of every historical period, with indexes/biographies for people and events.
Bill Nye the Science Guy-Fun with science.
Cool Science for Curious Kids- A fun and interactive site to help kids appreciate science. Includes activities adapted from various science museums.
Math Glossary- A boring name but a great site with illustrated and animated definitions and explanations of math terms. Searchable by grade level.
Super Kids Math Worksheet Creator-Just in time for summer! Create your own printable math sheets.
A. Pintura-Art Detective-Improve your reading and problem solving skills while also learning about artists like Picasso, van Gogh, and Gauguin as you help solve this art mystery.