MS-PS1-5

Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.

Clarification statement: Emphasis is on the law of conservation of matter and on physical models or drawings, including digital forms, that represent atoms.

Assessment boundary: Assessment does not include the use of atomic masses, balancing symbolic equations, or intermolecular forces.

Resources

Examples and discussion of resources for the learning, teaching, and assessment of MS-PS1-5.

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Assessment

What assessment of MS-PS1-5 might look like on a NY state exam.

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NGSS Dimensions

Performance expectation MS-PS1-5 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

MS-PS1-5 connections to ELA, math, and other science standards as outlined by the NYS Education Department:

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P-8 | MS. Chemical Reactions