The student will investigate and understand that land and water have roles in watershed systems. Key ideas include a) a watershed is composed of the land that drains into a body of water; b) Virginia is composed of multiple watershed systems which have specific features; c) the Chesapeake Bay is an estuary that has many important functions; and d) natural processes, human activities, and biotic and abiotic factors influence the health of a watershed system.
Lessons for this standard
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More specific sub-standards
All ecosystems, including watershed ecosystems, are affected by complex biotic and abiotic interactions involving exchanges of matter and energy.
In order to meet this standard, it is expected that students will
Human actions and geologic processes affect the availability of freshwater resources.
Similar standards in other grades
analyze data to determine the effect of a catastrophic event on a community (LS.8 c)
infer the niche of organisms from their physical characteristics.
Each organism fills a specific role or niche in its community.
predict the effect of large-scale changes on ecosystems and communities (LS.8 c)
changes in the environment may increase or decrease population size; and