Here is a terrific lesson for elementary schoolers on products that come from animals. In it, pupils discover that we get a lot more than just food from animals. After a class discussion and teacher-led demonstration, learners utilize...

Students examine the inhalation and exhalation process. They create a model pair of lungs from given materials. They discover the technology that has been developed based on engineers examining the respiratory system.

Students study the parts of the human respiratory system while examining the gas exchange that takes place in the lungs. They make a model lung. They look at how the respiratory system is affected by spaceflight.

Perform a virtual heart transplant in nineteen easy steps with this interactive feature from the NOVA: "Electric Heart" Web site. This interactive feature provides an in depth and realistic look at this procedure.

Discusses several pioneers of heart surgery, including Christian Barnard.