Through slide shows and models, audiences are shown what an individual sewage treatment system is and how it works to treat the solid and liquid waste leaving individual households in areas not served by a municipal sewage treatment system. Discussion includes how to tell whether or not a system is working adequately to protect human health and ground water, as well as what home owners can do to maintain and protect their system to prevent premature failure and other costly problems.
ENVIRONMENTAL LITERACY SCOPE AND SEQUENCE
SYSTEM CONCEPT(S) TO BE ADDRESSED:
Cause and effect
SYSTEM BENCHMARK(S) TO BE ADDRESSED FOR GRADES 9-12(adult):
D-1 The interaction of social and natural systems can create properties that are different from either individual system.
D-2 Interaction between social and natural systems is defined by their boundaries, relation to other systems, and expected inputs and outputs.
MINNESOTA ACADEMIC STANDARDS
MINNESOTA SCIENCE STANDARD(S) TO BE ADDRESSED:
9-12.I.B.2 - The student will distinguish between qualitative and quantitative data.
9-12.I.C.2 - The student will provide an example of a need or problem identified by science and solved by engineering or technology.
9-12.I.C.4 - The student will know that technological changes and scientific advances are often accompanied by social, political, environmental and economic changes.
Posted by Natural Innovations
Minnesota Pollution Control Agency
Dan Olson MPCA Public Information Officer
714 Lake Avenue Plaza, suite 220, Detroit Lakes, MN 56501