The Oklahoma Academic Standards for Science (OAS-S) are three-dimensional performance expectations representing the things students should know, understand, and be able to do to be proficient in science and engineering. Performance expectations are considered standards and include a science and engineering practice (indicated in blue and represent everyday skills of scientists and engineers), disciplinary core ideas (represented in orange and represent science ideas used by scientists and engineers), and a crosscutting concept (indicated in green and represent ways of thinking like scientists and engineers).
Each dimension in the OAS-S grows in complexity and sophistication across the grades. To learn more about the prior knowledge and skills students have developed (or future knowledge/skills) associated with that specific dimension, each section in the standard below is hyperlinked to that specific vertical learning progression page.
Chemistry (CH) Matter and Its Interactions
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CH.PS1.3 Plan and conduct an investigation to compare the structure of substances at the bulk scale level to infer the strength of electrical forces between particles.
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Clarification Statement: Emphasis is on understanding the relative strengths of forces between particles, not on naming specific intermolecular forces (such as dipole-dipole). Examples of particles could include ions, atoms, molecules, and networked materials (such as graphite). Examples of bulk properties of substances could include the melting point and boiling point, vapor pressure, and surface tension. The intent of the performance expectation is limited to evaluation of bulk-scale properties and not microscale properties.
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Assessment Boundary: Assessment does not include calculations related to any bulk-scale property.
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Science and Engineering Practices
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Disciplinary Core Ideas
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Crosscutting Concepts
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Planning and Carrying Out Investigations
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Plan and conduct an investigation individually and collaboratively to produce data to serve as the basis for evidence, and in the design: decide on types, how much, and accuracy of data needed to produce reliable measurements; consider limitations on the precision of the data (e.g., number of trials, cost, risk, time); and refine the design accordingly.
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Structure and Properties of Matter
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Structure and Function
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The functions and properties of natural and designed objects and systems can be inferred from their overall structure, the way their components are shaped and used, and the molecular substructures of its various materials.
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Connections to other Performance Expectations in Chemistry
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Structure and Properties of Matter
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Navigation Links
Chemistry Homepage
Chemistry Standards and Bundle Analyses
3D Science Vertical Learning Progressions
OKScience Frameworks Introduction
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