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Energy Flow Through an Ecosystem: Food Chains, Food Webs, and Energy Pyramids

Curated and Reviewed by Lesson Planet

When a minnow eats a piece of plastic, that garbage often tracks through multiple animals, causing harm to each as it passes through the food chain. Scholars learn about food chains, food webs, and energy pyramids with a presentation. It describes the role of producers, consumers, and decomposers in each.

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CCSS: Adaptable
Concepts
food chains, food webs, the energy pyramid, energy flow, ecosystems, photosynthesis, producers, primary consumers, secondary consumers, tertiary consumers, cellular respiration, herbivores, omnivores, carnivores, predators, prey, scavengers
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Additional Tags
science
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Instructional Ideas
  • Challenge pupils to create a complex food chain consisting of more than 10 organisms
  • Discuss what happens if there is an issue somewhere in the food pyramid
Classroom Considerations
  • Relies on prior knowledge of predator-prey relationships and food as energy
Pros
  • Highlights vocabulary words on each slide
  • Uses high-contrast colors for visibility
Cons
  • None