[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.

A collection of three lessons where students learn about abiotic factors in marine ecosystems, about marine food chains and biodiversity, and about marine food webs and trophic levels. Includes handouts, website links, and a vocabulary...

Understand how organisms acquire energy and how that energy is passed from one organism to another through food webs and their constituent food chains.

Create the parameters of your own ecosystem by choosing which producers and consumers live there. Visualize how the food web operates and species populations change. This simulator mimics the food web within a typical ecosystem and gives...

[Free Registration/Login may be required to access all resource tools.] Students will recognize and understand the role of producers in the food chain within different ecosystems.

[Free Registration/Login may be required to access all resource tools.] Energy is the ability to do work. In organisms, this can be physical work, like walking or jumping, or it can be the work used to carry out the chemical processes in...

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

This interactive ebook "Pond Web" demonstrates a pond food chain. Students can click on the ? to find answers to questions posed in the text. Students are asked to retell the story using pictures provided at the end of the book.

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

This Museum of Science page does an excellent job of explaining the importance of plants as producers in the sea. The food chain or food web has to start with the plants.

[Free Registration/Login may be required to access all resource tools.] Describes how food chains and webs represent feeding relationships.

Describes how a food chain works in a desert and how the Mojave desert food chain works in particular.

Describes the characteristics of a tundra biome, how a tundra food chain compares to a tropical food chain, and what the different trophic levels look like.

This lesson explains the role plants play in the conversion of inorganic materials into organic material to support living things. It is 2 of 3 in the series titled "The Role of Plants in the Food Chain."

This lesson explains the role plants play in the conversion of inorganic materials into organic material to support living things. It is 3 of 3 in the series titled "The Role of Plants in the Food Chain."

Explains what a primary consumer's role in a food chain is and provides examples.

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.

Students learn about energy and nutrient flow in various biosphere climates and environments. They learn about herbivores, carnivores, omnivores, food chains and food webs, seeing the interdependence between producers, consumers and...

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

Read to understand how energy and inorganic nutrients flow through a food chain in an ecosystem.

[Free Registration/Login may be required to access all resource tools.] Describes how to identify trophic levels in a food chain or food web.