A food web is a way of seeing how energy is transferred from organism to organism. All living things need energy. They use it to move, to grow, to reproduce. That energy has to come from someplace. Drawing a food web is a great way to...

This is a collection of courses on communities and ecosystems. Some topics explored are productivity, food webs, and ecology. The courses offer video clips, lecture notes, practice problems, and exam questions. Practice problems and exam...

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

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

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

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

This activity is designed to accompany an interactive on the Annenberg Learner website. Students investigate the changes that take place in an ecosystem when they alter the organisms in a food web. As they work with the simulation, they...

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

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...

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