This editable power point demonstrates key vocabulary with definitions, examples and; colorful illustrations. Vocabulary includes: systems, ecosystems, population, community, habitat, niche, matter, energy, consumers, producers, herbivores, carnivores, omnivores, scavengers, decomposers, and decay. Also included are examples of ecosystems, food chains, food webs and a collaborative activity where students work together to create an ecosystem. This activity can also be used as an assessment a