MS-PS1-2 | Chemical Reactions · NYS standard · Grade 8 test questions

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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)

Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

Clarification statement: Examples of chemical reactions could include burning of a wooden splint, souring of milk and decomposition of sodium bicarbonate.

Assessment boundary: Assessment is limited to analysis of the following properties: density, melting point, boiling point, solubility, flammability, color change, gas production and odor.

Grade 8 Science Test Questions

Released New York State Grade 8 science test questions that assess MS-PS1-2 are listed here by test and question cluster. Each link opens the question with its answer key.

Exam Cluster Question
Spring 2026 Grade 8 Test Hard-Boiled Eggs Question 40
Spring 2025 Grade 8 Test Maple Syrup Production Question 5
Rust Question 24
Rust Question 26
Spring 2024 Grade 8 Test The Chemistry of Propane Question 50
Middle school sample clusters Investigating Chemical Reactions Question 1
Investigating Chemical Reactions Question 4

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
  • analyze and interpret data
  • atom
  • boiling point
  • bulk quantity
  • burning
  • characteristic property
  • chemical property
  • chemical reaction
  • color change
  • data
  • decomposition
  • density
  • evidence
  • flammability
  • gas production
  • investigation
  • melting point
  • molecule
  • new substance
  • odor
  • physical property
  • property
  • rearrange
  • solubility
  • souring
  • substance
From released test questions

Performance Level Descriptions

Every Grade 8 Science Test question on MS-PS1-2 is written to match one of the performance level descriptions (PLDs) below.

Level 1: Given information about a reaction, identify the statement, from those provided, that provides evidence that a chemical reaction took place. Sample cluster Investigating Chemical Reactions Question 1
Level 2: Given a chemical reaction, identify properties of the substances that are different before and after the reaction has taken place. Spring 2026 Question 40
Level 3: Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred. Spring 2025 Question 5
Level 4: Plan and conduct an investigation to gather, analyze, and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

Resources

Examples and discussion of resources for the learning, teaching, and assessment of MS-PS1-2.

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NGSS Dimensions

Performance expectation MS-PS1-2 was developed using the following elements from the NRC document A Framework for K-12 Science Education:

Science and Engineering Practices
  • Analyzing and Interpreting Data
    • Analyze and interpret data to determine similarities and differences in findings.
Disciplinary Core Ideas
  • PS1.A: Structure and Properties of Matter
    • (NYSED) Each substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it.
  • PS1.B: Chemical Reactions
    • Substances react chemically in characteristic ways. When substances react, the atoms that make up the molecules rearrange, forming new substances with different properties.
Crosscutting Concepts
  • Patterns
    • Macroscopic patterns are related to the nature of microscopic and atomic-level structure.
MS | MS. Chemical Reactions