A video animation showing how oxygen is brought to the cells in the body. Follow the oxygen as it is taken in by the lungs as gas and then transformed into solution and carried by hemoglobin throughout the body. Also learn how oxygen...

Ozone can damage plants and harm our lungs as well. Find out how in this this informative and interesting site.

Run a race with Sandra and learn what our respiratory system is and how it functions.

This illustrated article helps students understand how the respiratory system works.

A large PDF unit that teaches students about the human body systems. Incorporates many activities and integrates math and language arts.

A comprehensive approach to the human respiratory system, complete with interactive quizzes.

This site provides many links on information about cancer.

Slideshow, with an accompanying quiz, demonstrates how the respiratory system works.

Comprehensive information on CF from the Cystic Fibrosis Foundation.

This article, written for younger readers, explains cystic fibrosis (CF), an inherited disease that causes the body to produce mucus that's extremely thick and sticky.

This article gives information about childhood cancer and its most common cause, genetic mutation. Treatment information is also included.

Detailed description and illustration of the terminal bronchi and alveoli.

An overview of Bronchitis is provided on this site. Signs, symptoms, and treatments are also included. Links to related sites are available.

From MedlinePlus, a video tutorial featuring information on the gas-exchange process with accompanying text.

[Free Registration/Login may be required to access all resource tools.] Covers the organs of the respiratory system.

The Campaign for Tobacco-Free Kids has developed a website showing how and why tobacco can affect many different aspects of your life. Click on one of the categories on the left to see how cigarette smoking hurts your health.

[Free Registration/Login may be required to access all resource tools.] Describes how the rate of breathing is regulated and controlled.

[Free Registration/Login may be required to access all resource tools.] Outlines the four steps of respiration.

[Free Registration/Login may be required to access all resource tools.] Discusses the process of respiration and how it differs from cellular respiration.

Take this interactive, multiple-choice quiz over the human respiratory system, then review your score and any missed questions at the end.

Take this interactive, multiple-choice quiz over human respiration, then review your score and any missed questions at the end.

Solid information on exposure to asbestos. Presented in a question and answer format.

Asthma makes it hard to breathe. Find out more in this article for kids.

How can you prepare for an asthma flare-up? Find out in this article for kids.