MS-PS1-7 | Density
Use evidence to illustrate that density is a property that can be used to identify samples of matter.
Clarification statement: Emphasis should be on students measuring the masses and volumes of regular and irregular shaped objects, calculating their densities, and identifying the samples of matter.
Note: this is a NYSED-specific performance expectation that is different from the Next Generation Science Standards.
Grade 8 Science Test Questions
Released New York State Grade 8 science test questions that assess MS-PS1-7 are listed here by test and question cluster. Each link opens the question with its answer key.
| Exam | Cluster | Question |
|---|---|---|
| Spring 2026 | Acoustic Levitation | Question 8 |
| Spring 2025 | Maple Syrup Production | Question 3 |
Performance Level Descriptions
Every Grade 8 Science Test question on MS-PS1-7 is written to match one of the performance level descriptions (PLDs) below.
Resources
Examples and discussion of resources for the learning, teaching, and assessment of MS-PS1-7.
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NGSS Dimensions
Performance expectation MS-PS1-7 was developed using the following elements from the NRC document A Framework for K-12 Science Education:
- Engaging in Argument from Evidence
- Construct and present oral and written arguments supported by empirical evidence and scientific reasoning to support or refute an explanation or a model for a phenomenon or a solution to a problem.
- 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.
- Patterns
- Macroscopic patterns are related to the nature of microscopic and atomic-level structure.