Seventh graders are introduced to the concept of ecosystems by allowing student to create their own ecosystem in a jar.

Students explore a series of Web pages designed to illustrate the interconnectedness of a tropical rainforest ecosystem. They discuss their research, create maps and research a local ecosystem.

Students compose a visual representation of the food chain cycle using Inspiration educational software.

Promotes the benefits of maintaining a sustainable future for American forests. Outlines initiative to fight urban sprawl and its negative effects on the environment.

This article defines "environment" as a collection of animals and plants in a specific landscape and climate. The concept of differing types of environments is introduced. The impact of humans on environments and all environments'...

Using maps and graphs of large data sets collected in FrogWatch, learners will determine the range, preferred land cover, and proximity to water of the American bullfrog to figure out the bullfrog's requirements for food, water, and...

Invasive species are disrupting many bodies of water in North America. Scientists share their reasons for concern in this brief article. Supporting and educator resources are provided.

This article highlights the infestation of mountain pine beetles in Yellowstone White Bark Pine Forests. Find out the cause and effect of such an outbreak and explore supporting resources.

This lesson will introduce abiotic and biotic factors, giving examples and comparing/contrasting the two. It is 2 of 4 in the series titled "Abiotic and Biotic Factors."

Take this interactive, multiple-choice quiz over concepts in ecology, then review your score and any missed questions at the end.

Take an interactive quiz over ecological problems affecting the environment. After completing the quiz, check your score, and then revisit any incorrect question for further review.

A webpage giving an overview of ecology. Learn about the biotic and abiotic factors that make up an ecosystem as well as the different levels of ecology.

Take this ten question quiz on abiotic and biotic environments. The quiz is multiple choice.

Take this ten question quiz on human impacts on ecosystems. The quiz is multiple choice.

This lesson will introduce abiotic and biotic factors, giving examples and comparing/contrasting the two. It is 4 of 4 in the series titled "Abiotic and Biotic Factors."

This lesson will introduce abiotic and biotic factors, giving examples and comparing/contrasting the two. It is 1 of 4 in the series titled "Abiotic and Biotic Factors."

A PowerPoint giving a basic definition of an ecosystem. Also explained with a definition and examples are abiotic and biotic factors of the ecosystem.

Designed by the Open University and the BBC, this website from Open2.net explores ecosystems. Included is a lengthy discussion on closed ecosystems and their importance to research, as well as a virtual ecosystem, an interactive showcase...