Who should have the power—individual states or the federal government? Scholars research the arguments of the Federalists and Anti-Federalists during the formation of the United States Constitution. Online resources, including a vast...

This multimedia site includes video and audio clips. The maps and fun facts will be very beneficial to students doing research projects.

Orcas, more commonly known as killer whales, are featured on this multimedia site. These video clips, audio clips, photographs and facts will be very beneficial to students doing research projects.

This multimedia article reveals the natural history of otters. The facts, maps, and video and audio clips are perfect resources for research.

The National Human Genome Research Institute's Genetic and Molecular Biology Branch provides this great multimedia site for information on DNA replication. Click on the explanation and if you have Real PLayer you will listen to an...