Fifth Grade Human Interactions on Ecosystems and Earth. 5-LS2-2 Students who demonstrate understanding can: Use models to explain factors that upset stability of local ecosystems. 5-ESS3-1 Students who demonstrate understanding can: Obtain and combine information about ways individual communities use science ideas to protect the Earth’s resources and environment. Ecosystems have many components that exist together in a balance. When any component in an ecosystem changes it can influence the other parts of the ecosystem. These changes can have a positive or negative impact on the ecosystem. Some of these changes are due to humans using resources within the ecosystem. Today many communities are doing things to help protect and restore resources in ecosystems through wildlife conservation programs, sustainable farming practices, and city recycling programs. Introduction to OKSci Framework Return to Fifth Grade Introduction Return to Fifth Grade Bundles.
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