Hahidi, which is testimony or witness in Swahili, is a concept, a program, a community of people. This free and open-source software was developed by Juliana Rotich. A poster celebrates her vision and accomplishments and deserves an...

A detailed color poster of a wetlands environment. The background shows an urban area as well as farmers at work, both potential threats to a wetlands ecosystem. It is meant to accompany a unit by the same name.

This page contains a collection of PowerPoint slideshows that explores metal mining and the environment. Slideshow contains information about how metals are mined and recovered from rocks. Slideshows also investigate environmental...

Ways that Texans have altered the environment in order to improve their living conditions are presented, for example, through forest clearing, irrigation, and dams.

A short slideshow explaining several ways that changes to the environment can have both positive and negative consequences.

This lesson will discuss the interactions of and interdependence among living things. It is 2 of 4 in the series titled "Living Organisms and Their Environment."

This page contains a collection of PowerPoint slideshows that explore water. Learn why water is important, why Earth is called the water planet, the parts of the water cycle, and the importance of water quality.

Understand the historic and recent use of land in various areas in the United States based on the maps on this site. "These maps show the changes in the landscape, including natural and man-made features, recreational and wilderness...

A collection of maps of historical significance which show changes in the landscape due to many factors. Included are maps showing specific conservation projects. Maps are printable.

Fascinating slide show accompanied by an explanation of the current situation in Africa as well as the challenges facing the future. These slide shows cover conflict, urban Africa, the environment, AIDS, and women. This tool is useful to...

This collection provides maps dating back to 1500 up to the present. The collection includes: cities, towns, discovery and exploration, conservation and environment, military battles, cultural landscapes, transportation, communication,...

Presents photographs of examples of clastic, chemical, and organic sedimentary rocks, with short descriptions underneath each rock image. Each rock name is also linked to its own dedicated page with a great deal of additional information...

Boston and its environs.

A map from 1909 of the environs around New York City, showing railroads, towns, and cities.

A map of London and its environs from 1920.

The Edinburgh Virtual Environment Center's philosophy deals with capturing, modeling and representation of 3D real world objects and domains. Explore this and more at this site.

The Edinburgh Virtual Environment Center's philosophy deals with capturing, modeling and representation of 3D real world objects and domains. Explore this and more at this site.

An online exhibit through which you can learn about Antarctica's explorers, the characteristics of the continent, and the peril faced by Antarctica's environment and ecosystems.

A remarkable website that provides satellite images of various places on earth from 1972 to present. The student can see and read about environmental changes to the earth's environment.

This lesson will explain the process of homeostasis and how it allows organisms to maintain a stable internal environment. It is 1 of 10 in the series titled "Homeostasis."

This site from the Virtual Sun gives a detailed account of the geographical region once inhabited by the Maya People. It describes the landscape, climate, and altitude.

See a map of Lake Biwa, and a brief description of the biggest lake in Japan.

An image of "View of the Environs of Carpentras", created by Georg Abraham Hackert in 1778 (Etching with line engraving, 480 x 670 mm).

An image of "Landscape in the Environs of Venice", created by Giacomo Guardiz (Oil on canvas, 17 x 23 cm).