Learners investigate body systems by participating in a role-play activity. Third, fourth, and fifth graders pretend that they are an organ or system of the human body, and they must write a letter to the body "corporation" discussing...

Students explore various parts of the heart and blood vessels . They begin with an overview of the components of the cardiovascular system. They see a cross section of an artery and watch how a blood clot develops.

Learners view the A.D.A.M. computer simulation of aerobic and anaerobic exercise. They break into groups and members brainstorm and list as many aerobic and anaerobic exercises as possible in five minutes.

Students put together a 3-D interactive "heart" puzzle and learn the names of heart parts.

Fourth graders identify the origins of meats and vegetables consumed by humans on a daily basis. They classify foods (meats, dairy products, grains...) and create a food pyramid.