When you breathe, you transport oxygen to the body's cells to keep them working, while also clearing your system of the carbon dioxide that this work generates. How do we accomplish this crucial and complex task without even thinking...

In this lesson plan site, students do an experiment, read, and view pictures to learn about the parts of the body that are involved in the breathing process. Contains related links.

An introduction to the form and function of the lungs, including the bronchioles and alveoli.

In this effective site, students will measure their respiratory rate and examine the factors that affect the breathing rate.

Come and explore this internet workshop that was designed to introduce you to a study on the respiratory system. Students and teachers will benefit from this resource.

In this comprehensive site, students will measure their lung capacity and look at factors that affect the amount of air the lungs can hold.