Early World of Learning: Grades PreK-3. Follow Trek and Taffy the cat around the world learning about colors, numbers and other fun things. Strengthen reading foundations with stories, activities and videos. Explore the Know It encyclopedia designed especially for early readers. Includes materials for educators.
Encyclopedia of Life: Life, Animals, Science. This encyclopedia site is hosted by the Smithsonian. It explores all life on the planet and compiles the most interesting articles on anything living you could want to explore!
World Book Kids: Grades PreK – 5. Contains nine content categories: Pictures and Videos, World of Animals, Activities, Maps and More, Games, Important People, Compare Places, Science Projects, and Dictionary. Also includes support and educator sections.