Volcano World - High quality remote sensing images and interactive experiments that add depth, variety, and currency to existing volcano information sources.	NASA - This is NASA's online outreach program to the educational community.
Science Learning Network - A good source for inquiry science resources (searchable by grade level or topic)	USDA for Kids - The United States Department of Agriculture Web site for kids.
Department of Health & Human Services for Kids	Student Baysavers - Educational activities by the Chesapeake Bay Foundation.