The following is a tutorial of food chains, food webs and food pyramids.

[Free Registration/Login may be required to access all resource tools.] Energy must constantly flow through an ecosystem for the system to remain stable. What exactly does this mean? Essentially, it means that organisms must eat other...

The students will become the food web in this fun interactive classroom activity. Detailed instructions, background information, guiding questions, and activity worksheets are provided.

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 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.

Omnivores, herbivores and carnivores are waiting for you. The food chain comes to life at this friendly site.

Understand how the food chain works within ecosystems.

Work samples, phenomena, assessment templates, and videos that directly address standard 5-PS3-1: food energy from the sun.

Work samples, phenomena, assessment templates, and videos that directly address standard MS-LS2-3: matter cycling and energy flow in ecosystems.

Lesson plan to construct and explain a food chain. Includes games and activities to teach and reinforce concepts.

A very informative site that discusses food chains and webs in detail. Not too complicated and fairly easy to understand, it also includes some pictures.

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

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

[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...