Offers info about science and social science content with videos, audio clips, images, and related websites.
Science Flix
Covers more than 30 subjects in all areas of science using video, articles, and interactive content including experiments. Tutorial.
PowerKnowledge Life Science
Interactive source with reliable information for grades 3-6.
PowerKnowledge Earth and Space
Interactive source with reliable information for grades 3-6.
PowerKnowledge Physical Science
Interactive source with reliable information for grades 3-6.
Experiment Central: Understanding Scientific Principles Through Projects
For grades 5 – 8.
Science Reference Center
Articles on biology, chemistry, earth and space, environment, health and medicine, life science, physics, technology, and wildlife. Tutorial