What makes the Earth unique? What are the different parts of the Earth? What is the chemical make-up of the Earth? Get the answers to these questions and more on this site from the Australian Museum Online.

Energy is neither created nor destroyed - and yet the global demand for it continues to increase. But where does energy come from, and where does it go? This video examines the many ways in which energy cycles through our planet, from...

Create a model to help learn the layers and structures within the Earth. Identify characteristics of each layer of the Earth.

Find out about the five layers of the atmosphere in this resource which provides loads of information about the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.

[Free Registration/Login Required] The article "The Rise of Oxygen in the Earth's Atmosphere" from the American Museum of Natural History focuses on when the rise of oxygen in the earth's atmosphere began. A Step Read, a question set,...

College-level online course highlighting the fundamentals of ecology. Course topics include coevolution of the biosphere, geosphere, atmosphere, and hydrosphere; photosynthesis and respiration; and the carbon, nitrogen, and water cycles....

An explanation of how the Earth's atmosphere has changed over time. Evidence that helped scientists understand these changes is presented.

In this instructional activity, students will understand that temperature changes can cause density changes in water and in air.

A webpage reviewing the origin of the Earth. Learn what Earth was like during its first billion years with an atmosphere that contained no oxygen. Understand that oxygen levels built up once green plants became more abundant. At the end...

As part of the General Chemistry Virtual Textbook, this site examines a variety of topics related to Earth's atmosphere. Topics covered in the overview include structure of the atmosphere, composition of the atmosphere, energy balance of...

This simulation allows you to experience Joe Kittinger's famous 1960 skydiving feat. As you ascend the troposphere and stratosphere you can view changes in several atmospheric conditions. The challenge will be surviving the leap once you...

Learn about the study of the Sun's influence on the solar system called Heliophysics. This site contains videos on topics like Space Weather, Solar Variability, the Heliosphere, Earth's Magnetosphere, and the Earth's Upper Atmosphere.

Check out real-time satellite photos of the earth to study weather patterns.

Windows to the Universe offers information on the Earth's atmosphere. The site contains links to a weather crossword puzzle and images.

This two-part resource explores the vertical structure of Earth's atmosphere. Content details the atmospheric layers, and the relationship between pressure and height in the atmosphere.

Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water),...

The plate tectonics and other features of the Earth's lithosphere are explained and illustrated. Has links to definitions of the magnetosphere, atmosphere, and hydrosphere.

Explains what the four spheres of the Earth are and describes how volcanic eruptions affect the different spheres. Also provides a list of events that are examples of interactions.

A discussion of the interactions between the four spheres of Earth and how they affect weather and climate. The slideshow is divided into two parts. The first deals with interactions between the atmosphere and the hydrosphere and the...

Get the big-picture overview of the importance of Earth's atmosphere and the reactions that happen within it.

This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the composition of the atmosphere. Review questions are included at the bottom of the study guide.

[Free Registration/Login may be required to access all resource tools.] How the pressure and density of the atmosphere varies.

[Free Registration/Login may be required to access all resource tools.] How the pressure and density of the atmosphere varies.

In this activity, you'll describe what you think it might be like for humans to live in the extremes of the biosphere. Think about the challenges associated with living either underwater or in the upper atmosphere. Also, think about what...