How Healthy is Your Watershed?

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Resource Type:Classroom Activities; Curricula and Instruction
Grade Level:
6 7 8
Organization:Innovative Technology in Science Inquiry (ITSI)
Publication Date:2016
Summary:Many things contribute to a healthy watershed. Certain land cover types like farm fields, cow pastures, sewage treatment plants and landfills are sources of nutrient and sediment pollution to streams. Rain falling on hot parking lots and rooftops in the summer delivers warm runoff water to streams. Healthy forests provide cooling shade and cool groundwater for streams. The mixture of land cover types in your watershed can control both the temperature and amount of pollution in the water. In this activity, you are going to test the amount of dissolved oxygen and the temperature of the water in a stream to determine if the stream is healthy.
Earth Science Big Ideas:Big Idea 5; Big Idea 7; Big Idea 9
NGSS Discplinary Core Ideas:ESS2.C; ESS3.C
NGSS Performance Expectations:MS-ESS2-2; MS-ESS2-4; MS-ESS3-3; MS-ESS3-4
NGSS Science and Engineering Practices:Constructing explanations (for science) and designing solutions (for engineering); Developing and using models; Engaging in argument from evidence
NGSS Crosscutting Concepts:Cause and effect: Mechanism and explanation; Energy and matter: Flows, cycles, and conservation; Scale, proportion, and quantity
Subjects: ecology; environment; land and water; land use; pollution; water quality; water resources; watershed
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