When resting, blood goes from the heart to the lungs and back in about six seconds. An animation of the heart starts simply by showing blood flow through the two halves. It builds in complexity slowly over the course of five slides,...

In this heart health worksheet, students use links provided to complete an activity about the human heart, measuring pulse and graphing results.

In this "All About the Heart" quiz worksheet, students interactively answer 5 questions about heart health, with the option of printing the quiz.

Take a look at the parts of the cardiovascular system including all of the major arteries and veins. Make sure to click on the interactive animation to find additional information.

A great overview of the Cardiovascular System, its structure and functions. See diagrams of the heart, and learn how the blood flows through the heart.

Game looking at the major systems of the human body. Covers the cardiovascular, respiratory, digestive, and excretory systems.

An eleven question assessment covering the circulatory and respiratory systems of the human body. After the quiz is completed, answers can be checked with a click of the mouse.

A guide to the heart, lungs, and circulatory system, and surgical procedures of the heart. Includes many digital images. Lesson plans with pictures and video instructions are very helpful.

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.

A colorful, interactive site for kids and teens. A holistic approach to learning about your body, including topics such as feelings, drugs, injuries, and other health issues. Available in Spanish.

Designed for medical students, this site gives a detailed description of the sounds of the heart and lungs, including disorders, while playing read audio of those sounds with each description. Suitable for upper level high school...

Take an interactive tour of the human heart. Click on each part of the illustration to read more information about each structure.

Article that explains what two things control our blood pressure. Part of a larger page on Mathematics and Blood Flow. Includes a quiz on pressure difference and resistance at bottom of the page.