[Free Registration/Login may be required to access all resource tools.] Discusses what causes weather, what humidity is and its role in the weather, how clouds are classified, and types of precipitation and how they form.

Students investigate the properties of visible light and the sequence of colors in the spectrum using light shone through water and prisms. The lesson and accompanying slideshow can both be downloaded.

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...

Air is a mixture of naturally occurring gases and human-made air pollutants. Learn more about these gases and the role they play in our atmosphere.

This virtual field trip for middle school students looks at aquifers and their place in the hydrologic cycle. Students learn why and how it is important to protect the source of your drinking water and some unique details about the...

This collection of five learning modules looks at issues related to environmental change and sustainability. Topics addressed include changes in the atmosphere, soil, water, and biodiversity, and what can be done to counteract this and...

Human beings have an enormous impact on the natural environment, and ultimately on each other. The way we chose to house, clothe, shelter, and meet the needs for vital resources such as food, energy, and water, not only affect the...

Between 70 and 75% of the Earth's surface is covered with water and there exists still more water in the atmosphere and underground in aquifers. In this lesson, students learn about water bodies on the planet Earth and their various uses...

Water can be in the atmosphere, on the land, in the ocean, and underground. It moves from place to place through the water cycle.

If you're lucky enough to live in a place that gets snow in winter, you know that the feel of the snow can vary a lot. Sometimes it can be light and fluffy, and other times heavy and wet. This project shows you how to use data from daily...

In this lesson, students will explore how water is continually cycled among land, the oceans, and the atmosphere.

In this activity, you will investigate some of the processes that make water move in and out of the atmosphere by making a miniature water cycle model inside a plastic bag.

In this classroom lab activity, students will work with a plastic cup, straw, and drinking water to gain a better understanding of how atmospheric pressure works. They will be able to see how an imbalance in the atmosphere causes a...

Learn about the movement of water from Earth's surface to the atmosphere with this site. Site describes the water cycle in words and with a diagram. Also explored on the page is the distribution of Earth's global water supply.

The GLOBE program is a worldwide network of students and scientists working together to monitor Earth's atmosphere and water. There are lots of resources here, and you can email a student involved in the program to learn more about GLOBE.

A collection of video lectures from a course that explores the physical processes the control Earth's atmosphere, ocean, and climate that is taught at Yale University. The course covers topics like clouds, rain, severe storms, regional...

"Explore things on, in, around and about the earth," with this web site dedicated to K-12 education from the United States Geological Survey. Homework help, science topics and fun learning games for students in Kindergarten through High...

Students will learn about how the Earth's carbon cycle works, as they examine the relationship between levels of carbon dioxide and water vapor in the atmosphere and the temperature of the ocean's surface. Includes online student...

In this activity, you can observe how ocean acidification can have big consequences. This activity has students creating a cup that has a carbon dioxide-rich atmosphere that allows them to watch how the water changes beneath the atmosphere.

This simulation from the National Center for Atmospheric Research portrays annual patterns in water vapor and precipitation across the globe, illustrating general circulation patterns as well as seasonal and regional variation. [4:52]

This site provides extensive information on the controversial theory that there are millions of small comets which continually burn up yearly in the earth's atmosphere.

A wonderfully complete primer on exothermic reactions in the context of chemical spills. Covers Reactions with Air or Water, Combustible Organics, Polymerization Reax, Decomposition, Corrosion, and much much more.

Listing of various fact sheets created and published through the Long Island Sound Study. Topics include How Low Dissolved Oxygen Conditions Affect Marine Life in LI, Impact of Atmospheric Nitrogen Deposition on Long Island Sound, Sound...

Illustrated tutorial explains nonpoint source pollution and its role in the health of the environment. Students learn about different sources of pollution and how these pollutants contaminate the land, air, and water. Click on the links...