Safe Water Science Lesson 2: Treatment of Water

Common Core Standards

NGSS: Define the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles
ETS1.A: Defining and Delimiting Engineering Problems

The more precisely a design task’s criteria and constraints can be defined, the more likely it is that the designed solution will be successful. Specification of constraints includes consideration of scientific principles and other relevant knowledge that are likely to limit possible solutions.
and potential impacts on people and the natural environment that may limit possible solutions.