SCIENCE AND
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ENGINEERING PRACTICES
SAMPLE STUDENT ENGAGEMENT, GRADES 9–12
Analyzing and
Interpreting Data
Create a short film, slide show, or other presentation that
compares two or more different sources of electricity in terms
of their environmental, economic, and social benefits and costs.
CROSSCUTTING CONCEPTS
SAMPLE STUDENT ENGAGEMENT, GRADES 9–12
Patterns
Devise and test a methodology to clean and purify a sample of
contaminated water, which may contain a combination of various
materials such as food coloring, grass clippings, dental floss,
“flushable” wipes, pharmaceuticals, mineral oil, salt, pepper, and
small pieces of newspaper. Identify the challenges of treating
wastewater on a citywide scale.
Cause and Effect
Examine the potential influence of climate change on water and
power resources (see the U.S. Environmental Protection Agency
website’s “Climate Impacts on Water Resources” at www3.epa.gov/
climatechange/impacts/water.html and “Climate Impacts on Energy”
at www3.epa.gov/climatechange/impacts/energy.html). Choose
one cause–effect relationship, and create an electronic or threedimensional model to describe and explain the connection.
BIG IDEAS
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Grades 9–12
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SAN FRANCISCO PUBLIC UTILITIES COMMISSION