View examples and learn how animals impact the food chain.

This illustrated guide to food chains and ecological pyramids will help clarify how energy flows through an ecosystem.

This tutorial review over food chains and how energy is transferred through them.

Students construct possible food webs for six different ecosystems as they learn about the roles of producers, consumers, herbivores, carnivores and decomposers.

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

Explains the characteristics of food chains and food web; the different levels of producers, consumers, and decomposers; and the differences between food chains and food webs. Includes charts and a Venn diagram comparing the two.

A lesson that helps students understand food chains and food webs. With the background information, interactive activity, and extensions, students will see the interconnectedness and interdependence of organisms. Activity has students...

Read about the different predators, consumers, and producers that make up an ocean food chain.

Use this TED Ed lesson, complete with video, questions, and links to resources for deeper understanding, to introduce the food chain.

Understand environments and how organisms adapt to their environment.

Discussion of what makes up a food chain and its significance. Includes some historical perspectives on developing the concept, and on how a pesticide called DDT affected food chains during the 1960's.

PBS site provides some basic information on the food chain.

In this ecosystem consisting of hawks, snakes, rabbits and grass, the population of each species can be studied as part of a food chain. Disease can be introduced for any species, and the number of animals can be increased or decreased...

[Free Registration/Login may be required to access all resource tools.] When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. Every time energy is transferred from one organism to another, there is a...

Explore the different ecological roles of organisms in the ecosystem, and find out how the energy flows through them.

Learners analyze food chains, webs, and pyramids to determine how energy flows and matter cycles through ecosystems.

This is a teacher's guide to a lesson on ecosystems. The objective is for the students to set up their own ecosystem and define the roles of producers, consumers and scavengers.

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

Students and teachers can explore the work of marine scientists and observe the ocean from their computers. Learn about Rutgers Coastal Ocean Observation Laboratory, discover why oceanography is important, and see what life is like in...

Students will understand and describe food chains and food webs, and explain how energy is transferred between their trophic levels.

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...