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

Identify the layers of the atmosphere through this interactive quiz.

Photos, diagrams, and other images related to climate and climate change.

Images and diagrams of the Sun, solar phenomena such as sunspots and flares, space weather, Earth's magnetosphere and upper atmosphere, the aurora, and more.

A diagram which shows how the process of atmospheric and ocean circulation works. It features such important terms as precipitation, evaporation, sublimation, snow, accumulation, wind redistribution, melt, runoff, heat, ice flow and...

A very detailed description of air masses, how they move and interact, and what weather takes place when this happens.

In October 1957, the Soviet Union launched Sputnik 1, the world's first artificial satellite. The 184-pound, 22.5-inch sphere orbited the earth once every 96 minutes. Sputnik transmitted radio signals for 21 days and later burned up in...

[Free Registration/Login may be required to access all resource tools.] Carbon is one of the most common elements found in living organisms. Chains of carbon molecules form the backbones of many molecules, such as carbohydrates,...

Take this online quiz and test your knowledge of geological history, and the formation of our atmosphere, water, crust, oxygen, tectonic plates, Moon, and the rest of the Earth.

From the Department of Atmospheric Physics at Oxford University, this page gives a scientific look at the techniques involved in the activity of rowing. Discusses the concepts of propulsion, resistance, kinetic energy, and much more...

Photos of various types of clouds and diagrams to help you understand clouds.

This site focuses on water and air pollution in Australia, with a brief mention of sea breezes.

This page defines electromagnetic radiation. Included are links to more information.

Describes the evolution of Thomas Newcomen's steam engine development. Provides several photographs and sketches of Newcomen's machines.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Utilizing time-lapse photography, this photograph captures multiple cloud-to-ground lightning strokes during a nighttime...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Using time-lapse photography, this image captures numerous cloud-to-ground lightning strokes during a nighttime thunderstorm in...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Originally appearing in National Geographic Magazine, this photograph captures a lightning strike above Norman, Oklahoma.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph captures several lightning strikes during an early evening thunderstorm.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph of a hailstone is measured on a ruler to indicate a diameter of 6 inches (approximately the size of a grapefruit).

This site from the University Corporation of Atmospheric Research provides an illustrated article about the phenomenon of rainbows.

This site from the University Corporation of Atmospheric Research provides an illustrated article about the phenomenon of rainbows.

This site from the University Corporation of Atmospheric Research provides an illustrated article about the phenomenon of rainbows.

This diagram shows a 3D computer generated image of the triatomic molecule known as ozone. Ozone is an allotrope that contains three oxygen atoms. The ozone layer found in the upper atmosphere helps protect the Earth against potentially...