Mayo Clinic
Mayo Clinic:target Heart Rate Calculator
Check your target heart rate for safe and effective exercise according to your age and health status in this interactive heart rate calculator
Texas Heart Institute
Texas Heart Institute: Anatomy of the Human Heart
Take an interactive tour of the human heart. Click on each part of the illustration to read more information about each structure.
University of Utah
University of Utah: Cardiovascular Pathology Index
This site features a detailed index of photographs for cardiovascular pathology. You can see what a normal human heart looks like and what a sick one looks like too. Come and check it out.
BBC
Bbc Schools: Ks2 Bitesize: Science: Living Things: Circulation
Check Steve's cardiovascular health before he starts filming his dangerous wildlife special. Following the activity, read more about the heart, and then take a quick quiz to check for understanding.
US National Library of Medicine
Medline Plus: Arrhythmias
A fact sheet on arrhythmias tell what they are, what causes them, different types of arrhythmias, risk factors, symptoms, treatment, and prognosis after diagnosis. Numerous diagrams of the heart accompany the article.
ClassFlow
Class Flow: Keeping Healthy
[Free Registration/Login Required] This unit helps children to learn that there are many aspects to keeping healthy. Children learn about the heart and how heartbeat is affected by exercise. It gives opportunities to explore issues about...