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HS-PS1-6 Evidence Statement

Physical Science: Matter and Its Interactions - Evidence Statement 6

HS-PS1-6: Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.*

[Clarification Statement: Emphasis is on the application of Le Chatelier’s Principle and on refining designs of chemical reaction systems, including descriptions of the connection between changes made at the macroscopic level and what happens at the molecular level. Examples of designs could include different ways to increase product formation including adding reactants or removing products.] [Assessment Boundary: Assessment is limited to specifying the change in only one variable at a time. Assessment does not include calculating equilibrium constants and concentrations.]

*This performance expectation integrates traditional science content with engineering through a practice or disciplinary core idea.

Source: http://www.nextgenscience.org/. For more specific information, including ways this performance expectation can achieve three-dimensional learning, please see this NGSS Evidence Statement.

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