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.
PBS
Pbs Learning Media: Amazing Heart Facts
This feature from the NOVA: "Cut to the Heart" highlights facts about the heart, including its size and placement, and will help you to understand the importance of this wondrous organ in our bodies.
Texas Heart Institute
Texas Heart Institute: Heart Information Center: Pacemaker
Article on arrhythmias with information about the heart's pacemaker.
National Health Museum
Access Excellence: Study of the Heart and Circulation
A concise history of the study of the heart and its anatomy. Includes color pictures and details about the work of Galen, William Harvey, and others.
What2Learn
What2 Learn: Heart and Circulation
Play this interactive hangman game to develop your vocabulary of terms dealing with the heart and circulatory system.
Other
Cartage.org: Abnormal Circulation
Causes of heart failure, signs and characteristics of heart failure, pathologic conditions resulting in heart failure, and more are the topics addressed in this thorough resource.
BioEd Online
Bio Ed Online: Examining the Heart
In this instructional activity, students will examine sheep or chicken hearts to learn about heart structure and the flow of blood through the heart.
BioEd Online
Bio Ed Online: Why Circulate?
In this lesson plan students will observe the dispersion of a drop of food coloring in water, draw conclusions about the movement of dissolved substances, and develop explanations about the importance of organisms' internal transport...
OpenStax
Open Stax: Anatomy & Physiology: Blood Vessel Development, Fetal Circulation
Students learn about the development of blood vessels, and how this contrbutes to fetal circulation.
PBS
Pbs Learning Media: Map of the Human Heart
See how the human heart moves blood through the body in this animated feature from the NOVA: "Cut to the Heart" Web site.
PBS
Pbs Learning Media: From the Heart
This video segment describes the basics of the circulatory system: how the heart pumps the blood that carries oxygen and nutrients throughout the body. [3:14]
PBS
Nova Online: Troubled Hearts
This site contains pictures of hearts that have some type of problem such as narrowing of the arteries and muscle damage from a heart attack. There is also a terrific picture of the coronary artery system that supplies the heart.
PBS
Pbs Nova Online: Amazing Heart Facts
This concise PBS NOVA site contains interesting facts about the heart and how it works.
Curated OER
Kids Health: Heart and Circulatory System
The circulatory system and how it functions are explained. An interactive diagram shows how blood flows through the heart. Disorders of the heart and the circulatory system are also described.
TeachEngineering
Teach Engineering: Body Circulation
Middle schoolers are introduced to the circulatory system, the heart, and blood flow in the human body. Through guided pre-reading, during-reading and post-reading activities, students learn about the circulatory system's parts,...
PBS
Nova Online: Map of the Human Heart
This PBS site has a concise explanation of how the heart works. There is also a moving diagram of a working heart.
The Franklin Institute
The Franklin Institute Online: The Structure of the Heart
Description of the structure of the heart including the valves.
Other
Hillfield Strathallan College: Evolution of Mammalian Circulation
An overview of the evolution of modern mamallian circulation. This is a good site since it puts the circulation found in reptiles in perspective. Compares it to systems in fish and mammals.
Science Museum of Minnesota
Habits of the Heart: Lessons: Blood Circulation
Teacher directed lesson plan where students dramatize the flow of blood through the heart.
BBC
Bbc: Ks2 Bitesize: Science: Circulation
Background information review of key concepts about the circulatory system, including the heart and pulse. Tis site provides diagrams, activities, and quiz questions.
University of Illinois
University of Illinois Urbana Champaign: The Heart of the Matter
A good quick look at the comparative anatomy of the heart of a typical bird and the human heart. Gives some of the facts behind the differences.
Earth Life
Earth Life: A Bird's Heart and Blood
A very good site about the circulatory system of a bird. It is reader friendly, and includes a fair amount of information. Good diagram of the circulatory system.
Texas A&M University
Organ Systems: Story Time: William Harvey
William Harvey, doctor during the Age of Enlightenment, challenged mainstream understanding of the heart and the circulation of blood. Read about his early education and his scientific inquiry.
Biology Pages
Kimball's Biology Pages: Anatomy of the Human Circulatory System
This site is produced by John W. Kimball, a retired biology teacher who wrote the textbook that these pages came from. The excerpt explains the different parts of the circulation system and how they function. Includes great pictures!