Provide your class with the opportunity to view our carbon cycle close up. Young scientists research the cycle of oxygen as it completes the tasks of photosynthesis and respiration. They explore the importance of carbon in an ecosystem...

How do we predict future population growth? Young researchers investigate various factors affecting the size of our population. As they calculate and interpret graphs to determine factors that could potentially affect increases...

How do we affect the ecosystem, and what can we do to preserve it? Pupils explore chemicals that promote and inhibit plant growth, then discuss the importance of nitrogen and phosphorus to the survival of organisms and describe how...

Describes eccrine and apocrine glands and relates them to heat tolerance. Also includes some information on sebaceous glands.

Lots of information about the black carpenter ant. Learn about their physical characteristics, colonies, life cycle, food sources, and predators. A detailed chart listing many plants and animals permits exploration of their relationships...

Explains what ecological succession is and why it happens. Describes some examples, how it affects humans, and why it does not really stop.

Extensive article on mangroves. Covers classification, physical characteristics, life cycle, habitat, economic value, and natural and human threats to their survival.

Find out how environmental degradation and the depletion of natural resources induced by human activities have attracted steadily growing concerns in the last decades.

Article describing the different categories of lichens, their physical features, how they reproduce, their evolution, and important benefits lichens provide to humans. (Published: July 19, 2010)

Complete illustrated discussion of energy flow within ecosystems, including discussions of trophic levels, ecological pyramids, food chains and webs, biological magnification, and cycles.

Learn about the many specializations in the field of geography within its two branches of physical and human geography.

University of California Berkeley offers a good discussion of the natural role that birds play and the importance of this role to man.

Definition of herbicides, how they are used, their damage to the environment and to ecology, consequences to human health, use around the world, and the three classes of herbicides.

Nice informational site about the order Carnivora. The opening page lists members of the order and briefly describes relationships between humans and carnivores. It links to pages on evolution of carnivores, the ecological roles of...

A massive amount of information about groundwater. Topics covered include groundwater basics, humans and groundwater, groundwater quality, and its place in the water cycle. Includes true-and-false quiz and a Q&A section, as well as a...

A very detailed look at the development of the field of sociology. Looks at its historical roots, the earliest sociologists, and explains major theories that it was based on, and theories and schools of thought that evolved from those....

Information and activities enhance student exploration of wildfire ecology and human interventions in Yellowstone National Park, and provide a background for land use management studies.

This lesson will discuss the key concepts related to the human relationship with the environment.

Here you can find an engaging lesson plan on the trash each individual generates over time. Students will learn how trash is generated, how trash is disposed of, and possible ways to reduce the amount of trash.

An introduction, aimed at upper elementary- and middle-school learners, to acid rain. [Click back to home to access the site in Spanish.]

A profile of Robert E. Park (1864-1944), an influential, early sociologist who taught at the University of Chicago.

This entry from Encyclopedia Britannica features Robert E. Park, an American sociologist noted for his work on ethnic minority groups, particularly African Americans, and on human ecology, a term he is credited with coining. One of the...

NatureWorks offers some fascinating information about the Temperate Deciduous Forests. Students and teachers will learn what makes these forests special, what animals live in this biome, what plants grow in this biome, and more.

Biological magnification is the term used to described the increasing accumulation of substances in organisms as one looks at higher trophic levels in a food chain. When that substance is a toxin, such as a heavy metal or a pesticide,...