Analysis of costs, environmental impacts, and risks, as well as of expected benefits, is a critical aspect of decisions about technology use. New technologies can have deep impacts on society and the environment, including some that were not anticipated or that may build up over time to a level that requires attention or mitigation. Widespread adoption of technological innovations often depends on market forces or other societal demands, but it may also be subject to evaluation by scientists and engineers and to eventual government regulation. Engineers continuously modify these technological systems by applying scientific knowledge and engineering design practices to increase benefits while decreasing costs and risks. ![]() Modern civilization depends on major technological systems, including those related to agriculture, health, water, energy, transportation, manufacturing, construction, and communications. Students manipulate, communicate and present data using appropriate statistics, mathematical models, and available technologyīy the end of grade 12.Students relate and apply concepts of energy and its interaction with matter to recognize types of waves and explain how they transfer energy, and to explain how wavelengths can be used to identify samples of matter.National Science Education Content Standards Reason quantitatively and use units to solve problems.Analyze that multiple technologies are based on the understanding of waves and their interactions with matter are everyday experiences in the modern world.Make inferences and justify conclusions from sample experiments.Construct explanations for why the λ of an electromagnetic wave determines its use for certain applications.Understand that our vision and physical tools have limitations.Apply mathematical formulas when to calculate experimentally the thickness of a thin film made of nail polish using the wavelength of light as a ruler. ![]()
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