How are animals and plants linked? What is the difference between a producer and consumer? How is a predator different from prey? Take this food chain quiz to find out the answers to these questions and more. Links allow you to convert...

[Free Registration/Login may be required to access all resource tools.] Understand what trophic levels are and identify producers and consumers in a food web.

This unit on matter cycling and photosynthesis has students investigating the idea that all food comes from plants.

A complete lesson on owl pellets. Students can read information, watch a tutorial, and use their computer mouse to complete a dissection simulation right there on the screen.

In this lesson from "The Friends of Auntie Litter", (www.auntielitter.org), food webs and their significance will be explored. This lesson is one from the "Take Pride Statewide" series. *Lesson provided by Julie Danley and Pam Walston.

This lesson plan provides an eight-day flow of educational activities in which middle schoolers use the Great Salt Lake ecosystem to explore food webs and how changes in living and nonliving factors affect different populations.

Fun, interactive game that helps students identify interrelationships in an ecosystem. For six or more players.

[Free Registration/Login may be required to access all resource tools.] Describes the function of various structures in mammals.

Explains what a food web is, the complexity of one in a rainforest, and how energy flows through a food web.

A short lesson explaining the "web of interactions" that occur in a food web. Understand how the energy flows between autotrophs and consumers. [0:35]

Explains the characteristics of tropical and temperate rainforests and what rainforest food webs look like.

This lesson will review the difference between producers and consumers, and show how both play important roles in a food web. It is 3 of 4 in the series titled "Producers and Consumers."

This lesson will review the difference between producers and consumers, and show how both play important roles in a food web. It is 4 of 4 in the series titled "Producers and Consumers."

This lesson will review the difference between producers and consumers, and show how both play important roles in a food web. It is 2 of 4 in the series titled "Producers and Consumers."

[Free Registration/Login may be required to access all resource tools.] Describes how energy is transferred from one organism to another.

The Web of Life is a story told by a common garden spider at this site from Kids' Planet. Learn about the food web, and the roles and relationships of every living creature.

This colorful site examines the food chain and delves into an explanation of what producers are and where they fit in an overall ecosystem.

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,...

College-level online course highlighting the fundamentals of ecology. Course topics include coevolution of the biosphere, geosphere, atmosphere, and hydrosphere; photosynthesis and respiration; and the carbon, nitrogen, and water cycles....

This lesson will review the difference between autotrophs and heterotrophs, and show how both play important roles in a food web. It is 2 of 4 in the series titled "Autotrophs vs. Heterotrophs."

Read a brief history of the use of DDT in the United States, its effect on wildlife, and the banning of the toxin in 1972 by the EPA.

This unit shows how ecosystems change over time and how matter and energy, which are essential to its operation, are transformed and passed from one living thing to another forming, in some cases, authentic cycles. It contains 19...

Learn about ecosystems, how they work, codependency, and food chains.

An ecosystem is composed of biotic factors of a community of living organisms interacting with one another which we can see in food chains/webs. These diverse organisms stay together because of the need of food. Population is referred to...