All 3 clusters in Sample clusters
Each phenomenon cluster pairs a shared reading, experimental table, graph, or diagram with 5 connected questions. Select any cluster below to launch it in the interactive workspace with the 2025 Reference Tables and scoring rubrics.
| Questions | Cluster & NYSP12SLS Standards | Format | Workspace |
|---|---|---|---|
| 1–5 | Smartphone ChemistryPhone glass, aluminum, and lithium batteries: periodic patterns, mole–mass calculations, and electron transferPeriodic patterns · Materials and structure · Stoichiometry and conservation · Engineering design · Oxidation and reduction (HS-PS1-1, HS-PS2-6, HS-PS1-7, HS-ETS1-1, HS-PS1-12) | 2 MC, 3 CR | Practice cluster |
| 1–5 | A Profitable Blueberry FieldAdjusting soil acidity for blueberries: pH and hydronium ions, acids and bases, and conservation of massAcids and bases · Stoichiometry and conservation (HS-PS1-11, HS-PS1-7) | 3 MC, 2 CR | Practice cluster |
| 1–5 | Evaluating Gas StovesA methane stove ban and reforestation: combustion and bonding, greenhouse-gas data, photon energy, and photosynthesisBonding and formulas · Periodic patterns · Electromagnetic radiation · Photosynthesis (HS-PS1-2, HS-PS1-1, HS-PS4-4, HS-LS1-5) | 2 MC, 3 CR | Practice cluster |
How to practice with Sample clusters
Work a phenomenon cluster
Every new-format Regents exam groups 45–55 questions into 9–11 clusters anchored by a shared reading, experimental table, graph, equation, or particle/system model.
Answer on-canvas, in tables, and in prose
Keep the cluster stimulus and the 2025 Reference Tables open beside the questions. Answer 1-credit multiple choice, check Support/Refute claim boxes, draw diagrams or particle models, label figures, and write out mathematical setups.
Score against the NYSED rating guide
Both Learn mode and Exam mode unlock scoring guides after you submit the full cluster. Multiple choice is graded automatically against the key; written responses and models use rubric-guided self-review.
Looking for more Chemistry practice? Explore the Chemistry Regents hub → or review the 2025 Chemistry Reference Tables guide →.
Frequently asked questions
- How is Official 2025 Physical Science: Chemistry Sample Clusters (Free Practice) structured on All Regents?
- Practice all 3 official 2025 NYSED Physical Science: Chemistry sample clusters (Smartphone Chemistry, A Profitable Blueberry Field, and Evaluating Gas Stoves) free with the 2025 Reference Tables and scoring rubrics. Every question is worth 1 raw credit and pairs with the 2025 Edition Reference Tables, automatic multiple-choice key checking, and step-by-step constructed-response scoring guidance.
- Can I practice one phenomenon cluster at a time or sit the full exam?
- Yes. In the All Regents workspace you can launch any individual 4–6 question cluster in Learn mode (with strategy prompts) or sit the complete examination in Exam mode, then review every answer against the official-style scoring guide.