HS-PS1-4

Develop a model to illustrate that the release or absorption of energy from a chemical reaction system depends upon the changes in total bond energy.

Clarification statement: Emphasis is on the idea that a chemical reaction is a system that affects the energy change. Examples of models could include molecular-level drawings and diagrams of reactions, graphs showing the relative energies of reactants and products, and representations showing energy is conserved.

Assessment boundary: Assessment does not include calculating the total bond energy changes during a chemical reaction from the bond energies of reactants and products.

Resources

Examples and discussion of resources for the learning, teaching, and assessment of HS-PS1-4.

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Assessment

What assessment of HS-PS1-4 might look like on a NY state exam.

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NGSS Dimensions

Performance expectation HS-PS1-4 was developed using the following elements from the NRC document A Framework for K-12 Science Education:

Science and engineering practices

Disciplinary core ideas

Crosscutting concepts

Connections to Other Standards

HS-PS1-4 connections to ELA, math, and other science standards as outlined by the NYS Education Department:

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Chemistry | HS. Chemical Reactions