Food chains: trophic levels

From Smile and Learn

Food chains: trophic levels
7 min4th5thScience
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Summary

Traces energy through a food chain from the sun to plants to animals, introducing producers, consumers, and decomposers.

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All ages

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Teaching resources

Discussion questions

Talk about it

Energy flows from the sun to plants (producers), to animals that eat them (consumers), and finally to decomposers. Each link passes energy along.

  1. Where does the energy in a food chain start?
  2. What is the difference between a producer and a consumer?
  3. What job do decomposers do?

Quick work-a-long

Vocabulary: producer, consumer, decomposer, energy.

Try it: Draw a food chain with at least three links, starting with the sun. Label each part.