Food Chains and Webs

All living organisms depend on one another for food. By reviewing the relationships of organisms that feed on one another, this lesson explores how all organisms— including humans—are linked. If students understand the relationships in a simple food chain, they will better understand the importance and sensitivity of these connections, and why changes to one part of the food chain almost always impact another.


  • Describe the difference between herbivores, carnivores and producers.
  • Answer questions about the interdependence of herbivores, carnivores and producers as members of a food chain.
  • Answer questions about how pollution affects food chains.

External Curriculum Materials


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