This interactive magazine style reading assignment with full teacher key teaches students the concept of ecosystems, energy flow in ecosystems, biotic factors, abiotic factors, habitat, species, niche, producers, consumers, decomposers, herbivores, carnivores, omnivores, scavenger, decomposers, food chain, food web, energy pyramid, and trophic levels. I use this activity to introduce or re-teach energy flow in ecosystems and the main vocabulary for our ecology and ecosystems unit. Would make a g