Articles, videos, and photos on the topic of world conservation such as green health, air quality, and climate change.

The importance of energy conservation and energy efficiency are discussed, with reference to where Americans' energy use compares to that of the rest of the world.

[Free Registration/Login Required] Create a science test that checks for student understanding in science, for common misconceptions, as well as for correct ideas. This is a list of key ideas related to Substances, Chemical Reactions,...

[Free Registration/Login Required] Create a science test that checks for student understanding in science, for common misconceptions, as well as for correct ideas. This is a list of key ideas related to Energy: Forms, Transformation,...

[Free Registration/Login may be required to access all resource tools.] Students investigate how all types of energy, including work, relate to each other and are conserved in a closed system.

Use this calculator to figure out how much water you are using at your home.

Discusses different features that can be incorporated into a home's design in order to harness solar energy.

Explains how a heat pump system works, and how a ground-coupled system improves its efficiency and saves money.

Discusses different ways to heat and cool a home, and perform a variety of tasks, using renewable energy sources. Examples include window shades, a solar water heater, solar-powered toys, etc.

[Free Registration/Login may be required to access all resource tools.] Covers the law of conservation of energy and how energy is conserved in chemical reactions.

[Free Registration/Login may be required to access all resource tools.] Describes the law of conservation of energy and how energy is conserved in chemical reactions.

This resource provides information about bats, and bat conservation.

Against the backdrop of the devastating 1930's Dust Bowl, this video segment adapted from Interactive NOVA profiles an organic farmer and the techniques he uses to conserve topsoil.

By taking a look at the energy of motion all around us, students learn about the types of energy and their characteristics. They first learn about the two simplest forms of mechanical energy: kinetic and potential energy, as illustrated...

[Free Registration/Login may be required to access all resource tools.] In this online tutorial students are asked to demonstrate and apply the law of conservation of momentum.

Information about the Mojave Desert: ways it differs from other deserts, its conservation status, and efforts to protect it. (Published: April 30, 2010)

A comprehensive exploration of rivers and lakes, their importance to biodiversity and to humans, how we use them, threats they face, and what is being done to conserve them.

Discover interesting facts and information about the Civilian Conservation Corps that was established to employ young men to work on conservation projects and was created as part of FDR's New Deal Programs.

Read an in-depth description of polar bears. Includes numerous images.

Explains how photovoltaic systems work and how Texas homeowners are using them. Discusses how a homeowner can use solar energy and still be on the electricity grid system.

An introduction to solar cookers, how they are designed, and how to use one.

Explains the types of solar water heaters a home can have. These include a passive system, an active system, and a solar collector, as well as the need for a storage tank. It also gives tips on how to get the best use from a solar water...

Discusses photovoltaic energy systems and their many applications, e.g., in telecommunications, consumer products, space technology, solar lights, etc.

Explains what landfill gas is, some of its applications, and how Texas is harnessing it as a source of renewable energy.