This article discusses the differences between ozone in the stratosphere and troposphere, and how NASA is measuring ozone using a spectrometer on-board the Aura satellite. The article includes an activity: building a spectroscope using a DVD cover and inexpensive materials.

Students will learn about the layers of Earth's atmosphere by launching virtual balloons to collect temperature and pressure data at various altitudes.

What Is Air? Is a brief introduction to the properties of air using two It’s Our Air videos (http://www.itsourair.org) with a student worksheet for evaluation. (www.itsourair.org).  

In this activity, students learn the distinctions of each layer of the atmosphere and sketch the layers.

This encyclopedia entry is for the term "ozone layer." The ozone layer is one layer of the stratosphere, the second layer of the Earth?s atmosphere. The stratosphere is the mass of protective gases clinging to our planet. This entry discusses what the ozone layer does for us and how we are impacting the layer. Text for this entry is appropriate for the middle and high school grade levels.