The Ecosystem Interactions, Energy and Dynamics Learning Activities set for Middle School Science provides the materials you need to design your unit. The activities address the topics included in NGSS learning standards MS-LS2-1, MS-LS2-2, MS-LS2-3, MS-LS2-4 and MS-LS2-5. These topics include, but are not limited to:Ecological Organization (population, community, ecosystem, biosphere)Abiotic and Biotic FactorsRequirements for a Self-Sustaining EcosystemNutritional Terminology and Examples (