MS-PS1-8

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Plan and conduct an investigation to demonstrate that mixtures are combinations of substances.

Clarification statement: Emphasis should be on analyzing the physical changes that occur as mixtures are formed and/or separated. Examples of common mixtures could include salt water, oil and vinegar, and air.

Assessment boundary: Assessment is limited to separation by evaporation, filtration and magnetism.

Note: this is a NYSED-specific performance expectation that is different from the Next Generation Science Standards.

Performance Level Descriptions

Every Regents exam question on MS-PS1-8 is written to match one of the performance level descriptions (PLDs) below.

Level 1: Given an investigation and data, identify the substances that were physically combined to create the mixture.

Level 2: Conduct a given investigation to provide evidence that mixtures are physical combinations of substances.

Level 3: Plan and conduct an investigation to demonstrate that mixtures are combinations of substances.

Level 4: Plan and conduct multiple scientific investigations to provide evidence that mixtures are physical combinations of substances.

Resources

Examples and discussion of resources for the learning, teaching, and assessment of MS-PS1-8.

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Grade 8 Science Test Questions

Released New York State Grade 8 science test questions that assess MS-PS1-8 are listed here by test and question cluster. Each link opens the question with its answer key.

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NGSS Dimensions

Performance expectation MS-PS1-8 was developed using the following elements from the NRC document A Framework for K-12 Science Education:

Science and Engineering Practices

• Planning and Carrying Out Investigations
  • Plan and conduct an investigation to demonstrate that mixtures are combinations of substances.

Disciplinary Core Ideas

• PS1.A: Structure and Properties of Matter
  • Mixtures are physical combinations of one or more samples of matter and can be separated by physical means.

Crosscutting Concepts

• Patterns
  • Macroscopic patterns are related to the nature of microscopic and atomic-level structure.

Connections to Other Standards

MS-PS1-8 connections to ELA, math, and other science standards as outlined by the NYS Education Department:

Page contributors: Caroline Leonard, Shirley Shameen

MS | MS. Structure and Properties of Matter