400 Years of Subs (Interactive)
Follow the progress of submarine invention over four centuries, from the first working submarine built in 1623 to the most advanced marine machine ever to sail the seas, the USS Seawolf, launched in 1997.
http://www.pbs.org/wgbh/nova/lostsub/history.html

See Inside a Submarine (Interactive)
Lead yourself on a virtual tour through the USS Springfield—an active nuclear submarine based in Groton, Connecticut—with these 360-degree views.
http://www.pbs.org/wgbh/nova/subsecrets/inside.html

Tour U-869 (Interactive)
Learn about this U-boat and then take a virtual tour of its parts to gain a better idea of the equipment, furnishings, and daily grind aboard a Type IXC submarine. (Flash plug-in required.)
http://www.pbs.org/wgbh/nova/lostsub/tour.html

The Threat of Midget Subs Today
Iran and North Korea have midget subs, as do drug smugglers. Explore how grave the danger is.
http://www.pbs.org/wgbh/nova/killersubs/threat.html

Underwater Dream Machine (Lesson)
Prepare a "diving tank" and a "submarine" using household materials, then make the submarine neutrally buoyant in the tank.
http://www.pbs.org/wgbh/nova/teachers/activities/3319_alicia.html

Curriculum Connections
Submarines, neutral buoyancy, negative and positive buoyancy, buoyant force, ballast

Standards
Grades 5-8
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard B: Physical Science: Motions and forces

Grades 9-12
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard B: Physical Science: Motions and forces

Breakdown of a Battle Group (Interactive)
Get the facts on each of the crafts that make up a powerful U.S. Navy force, from an attack submarine to an aircraft carrier.
http://www.pbs.org/wgbh/nova/battlegroup/elements.html

Curriculum Connections
U.S. Navy, battle group, warfare

Standards
Grades 5-8
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard F: Science in Personal and Social Perspectives: Science and technology in society

Grades 9-12
Standard A: Science as Inquiry: Abilities necessary to do scientific inquiry, Understanding about scientific inquiry
Standard F: Science in Personal and Social Perspectives: Science and technology in local, national, and global challenges