Performance expectationPlan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles.
Emphasis is on understanding the strengths of forces between particles in solids, liquids, and gases, not on naming specific intermolecular forces (such as dipole-dipole). Examples of particles could include ions, atoms, molecules, and network solids. Examples of bulk scale properties of substances could include the melting point and boiling point, vapor pressure, and surface tension.
Every item written to HS-PS1-3 has to assess all three dimensions together, not the content alone. This is the structural change that made older practice material stop matching the exam.
Planning and Carrying Out Investigations
What a student at each level can do with HS-PS1-3. These drive how a cluster spreads difficulty across its items.
Summarised by ScienceIQ from the NYSED Performance Level Descriptions for Physical Science: Chemistry. These are our wording, not the Department’s — the official descriptions are the authority.
Identify a pattern in bulk properties related to particle attractions.
Make a claim comparing relative strength of particle attractions from provided data.
Use investigation results or information to describe patterns in particle attractions and bulk properties.
Plan and conduct an investigation to compare structure and infer electrical forces between particles.
Phenomenon stimulus, connected items across the required types, answer key, rubric and figures drawn deterministically from a structured spec — in the format your students will sit.