MS-PS1-8 | Mixtures · NYS standard

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Revision as of 09:53, 17 October 2026 by Conrad (talk | contribs) (Vocabulary section (terms from the Middle School Science Glossary) and PLD example questions)
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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.

Grade 8 Science Test Questions

No released Grade 8 science test questions for MS-PS1-8 have been added to the wiki yet.

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Vocabulary

Terms from the Middle School Science Glossary that come from this standard or from the released Grade 8 Science Test questions that assess it.

From this standard
  • combination of substances
  • data
  • evaporation
  • filtration
  • investigation
  • magnetism
  • mixture
  • physical change
  • physical combination
  • plan and conduct an investigation
  • separation
  • substance

Performance Level Descriptions

Every Grade 8 Science Test 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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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.
Page contributors: Caroline Leonard, Shirley Shameen
MS | MS. Structure and Properties of Matter