Air, air, everywhere, but what's in it, and what makes Earth's air so unique and special? Journey through the layers above us to uncover our atmosphere's composition and how it works to make life possible below. Pupils conduct...

Students probe the dynamic weather changes through several hands-0n activities in this seven lessons unit. The hydrologic cycle, clouds, atmosphere, air movement, fronts, and forecasting form the components presented in this unit.

A video and a short multiple-choice quiz on the composition of and the layers in Earth's atmosphere.

Instructional module focusing on Earth's atmosphere. Discussion includes major components, layers, air pressure, and scientific monitoring of the atmosphere. Site also includes an interactive practice quiz and links relating to the topic.

[Free Registration/Login may be required to access all resource tools.] How different temperature gradients separate the atmosphere into distinct layers.

[Free Registration/Login may be required to access all resource tools.] How different temperature gradients separate the atmosphere into distinct layers.

[Free Registration/Login may be required to access all resource tools.] Describes the gases that the atmosphere is made out of.

[Free Registration/Login may be required to access all resource tools.] Describes the properites of the thermosphere and exosphere.

[Free Registration/Login may be required to access all resource tools.] Describes the properties of the thermosphere and exosphere.

In this lesson, you will learn about how the Earth formed as well as the composition and structural layers of the Earth's interior.

A tutorial exploring the atmospheric blanket to show how the atmosphere supports life and insulates the Earth.

A slideshow and a short multiple-choice quiz on the rock surface of the Earth, its water, and the gas layers that surround it.

[Free Registration/Login may be required to access all resource tools.] Describes the properties of the stratosphere.

Students are introduced to the concept of air quality by investigating the composition, properties, atmospheric layers and everyday importance of air. They explore the sources and effects of visible and invisible air pollution. By...