Unit 1: Chemical Hygiene · Atomic Structure & Bonding 7 Lessons · Atomic Architecture, Trends & Bonding
Storyline Anchor: “What makes a chemical hazardous, and how can we know before we even open the bottle?”
Unit 2: Prata Problems · Matter, Reactions & The Mole 6 Lessons · Physical/Chemical Transformations & Stoichiometry
Storyline Anchor: “Why does roti prata taste different after it hits the grill?”
Unit 3: Energy · Heat, Phase & Reaction Energetics 5 Lessons · Thermal Equilibrium, Phase Changes & Enthalpy
Storyline Anchor: “How can you stay cool in Singapore without breaking the bank?”
Unit 4: Human Equilibrium · Speed, Balance & Homeostasis 4 Lessons · Kinetics, Catalysts, Le Chatelier & Buffers
Storyline Anchor: “How does your body control its chemistry?”
Unit 5: Origin of the Elements · Stars, Space & Nuclear Physics 5 Lessons · Stellar Fusion, Big Bang Evidence & Radioactivity
Storyline Anchor: “Where did the atoms in your body come from?”
HS-PS1-1: Valence Electrons & Periodic Trends 2 Lessons
Standard: “Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.”
HS-PS1-1 Adaptive Competency Station
Practice 6 core skills sequentially. Rapid diagnostic checks identify skill deficits, followed by targeted adaptive practice and a verified PDF receipt.
HS-PS1-2: Simple Chemical Reactions & Bonding 5 Lessons
Standard: “Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.”
HS-PS1-2 Adaptive Competency Station
Practice 6 core skills covering bond types, molecular polarity, nomenclature, physical vs. chemical change, reaction types, and stoichiometric equation balancing.
HS-PS1-3: Electrical Forces & Intermolecular Forces 2 Lessons
Standard: “Plan 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.”
HS-PS1-3 Adaptive Competency Station
Practice 8 core skills covering molecular polarity, electrical forces, bulk properties, and IMFs with adaptive scaffolding and verified PDF receipt.
HS-PS1-4: Bond Energy & Reaction Energetics 1 Lesson
Standard: “Develop a model to illustrate that the release or absorption of energy from a chemical reaction system depends upon the changes in total bond energy.”
HS-PS1-4 Adaptive Competency Station
Practice 6 core skills covering bond breaking and forming, reaction coordinate energy profiles, bond enthalpy calculations, system-surroundings thermal flow, bond stability, and collision transition states.
HS-PS1-5: Collision Theory, Rates & Catalysis 2 Lessons
Standard: “Apply scientific principles and evidence to provide an explanation about the effects of changing the temperature or concentration of the reacting particles on the rate at which a reaction occurs.”
HS-PS1-5 Adaptive Competency Station
Practice 6 core skills covering collision theory requirements, Maxwell-Boltzmann kinetic energy distributions, concentration and pressure, surface area, catalyst pathways, and experimental rate data.
HS-PS1-6: Dynamic Equilibrium & Le Chatelier 2 Lessons
Standard: “Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.”
HS-PS1-6 Adaptive Competency Station
Practice 6 core skills covering dynamic rate balance, concentration stresses, endothermic/exothermic temperature shifts, gas volume and pressure, the Haber-Bosch process, and coupled blood buffer equilibria.
HS-PS1-7: Conservation of Atoms & The Mole 3 Lessons
Standard: “Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.”
HS-PS1-7 Adaptive Competency Station
Practice 6 core skills covering Avogadro's scale bridge, molar mass, unit conversions, stoichiometric mole ratios, BCA tables, and percent yield.
HS-PS1-8: Nuclear Processes, Decay & Energy 1 Lesson
Standard: “Develop models to illustrate the changes in the composition of the nucleus of the atom and the energy released during the processes of fission, fusion, and radioactive decay.”
HS-PS1-8 Adaptive Competency Station
Practice 6 core skills covering nuclear composition, alpha/beta decay balancing, gamma shielding, half-life kinetics, induced fission chain reactions, and solar fusion mass defect.
HS-PS2-6: Molecular Structure & Bulk Properties 1 Lesson
Standard: “Communicate scientific and technical information about why the molecular-level structure is important in the functioning of designed materials.”
HS-PS2-6 Adaptive Competency Station
Practice 5 core skills covering fatty acid geometry, London dispersion forces, melting points, 5-step material design arguments, and GHS safety.
HS-PS3-1: Computational Thermal Energy & Calorimetry 3 Lessons
Standard: “Create a computational model to calculate the change in the energy of one component in a system when the change in energy of the other component(s) and energy flows in and out of the system are known.”
HS-PS3-1 Adaptive Competency Station
Practice 6 core skills covering thermal energy vs temperature, specific heat capacity (q = mcΔT), phase transitions and latent heats (q = mΔH), multi-stage heating curves, coffee-cup calorimetry, and LOL energy diagrams.
HS-PS3-4: Thermal Equilibrium in Closed Systems 1 Lesson
Standard: “Plan and conduct an investigation to provide evidence that the transfer of thermal energy when two components of different temperature are combined within a closed system results in a more uniform energy distribution among the components in the system.”
HS-PS3-4 Adaptive Competency Station
Investigate thermal energy transfers in closed systems: Second Law of Thermodynamics, particulate collision impulse forces, dynamic thermal equilibrium, Maxwell-Boltzmann velocity dispersion, and mathematical equilibrium modeling (q_lost = -q_gained).
HS-PS4-4: Electromagnetic Radiation & Matter 1 Lesson
Standard: “Evaluate the validity and reliability of claims in published materials of the effects that different frequencies of electromagnetic radiation have when absorbed by matter.”
HS-PS4-4 Adaptive Competency Station
Evaluate electromagnetic radiation claims: Planck-Einstein photon energy (E = hν), molecular rotation, vibration, and electron transitions, the 10 eV ionization divide, semiconductor sunscreen nanoparticle physics, and epidemiological risk analysis.
HS-ESS1-1: Solar Fusion & Lifespan of the Sun 1 Lesson
Standard: “Develop a model based on evidence to illustrate the life span of the sun and the role of nuclear fusion in the sun’s core to release energy that eventually reaches Earth in the form of radiation.”
HS-ESS1-1 Adaptive Competency Station
Model solar nuclear fusion and stellar lifespan: hydrostatic equilibrium thermostat dynamics, proton-proton fusion chain steps, mass defect (E = Δm · c²), photon diffusion through the radiative zone vs. neutrino escape, and stellar mass-luminosity scaling.
HS-ESS1-2: The Big Bang & Astronomical Evidence 1 Lesson
Standard: “Construct an explanation of the Big Bang theory based on astronomical evidence of light spectra, motion of distant galaxies, and composition of matter in the universe.”
HS-ESS1-2 Adaptive Competency Station
Analyze empirical evidence for the Big Bang: cosmological galactic redshift (z = Δλ / λ), Hubble's Law (v = H₀ · d), Big Bang nucleosynthesis (75% H / 25% He), the 2.725 K Cosmic Microwave Background relic blackbody radiation, and cosmic lookback time.
HS-ESS1-3: Stellar Nucleosynthesis of Elements 1 Lesson
Standard: “Communicate scientific ideas about the way stars, over their life cycle, produce elements.”
HS-ESS1-3 Adaptive Competency Station
Track elemental origin nucleosynthetic pathways across stellar life cycles: stellar mass thresholds and Coulomb barriers, concentric onion fusion shells in supergiants, the iron-56 peak binding energy per nucleon barrier, core-collapse supernovae, slow (s-process) and rapid (r-process) neutron capture, and cosmic recycling of enriched stardust.
Concept Mastery Map
Supplemental simulations, video tutorials, and textbook readings for Unit 1 (Chemical Hygiene: Atomic Structure & Bonding).
SciencePractice.app: Access sciencepractice.app directly for interactive drills. Sign in with your school Google account.
Videos
Readings & Simulations
Supplemental simulations, video tutorials, and textbook readings for Unit 2 (Prata Problems: Conservation of Mass, Reactions & Stoichiometry).
SciencePractice.app: Access sciencepractice.app directly for interactive drills. Sign in with your school Google account.
Videos
Readings & Simulations
Supplemental simulations, video tutorials, and textbook readings for Unit 3 (Energy: Heat, Phase Changes, and Reaction Energetics).
SciencePractice.app: Use sciencepractice.app for targeted interactive drills.
Videos
Readings & Simulations
Supplemental simulations, video tutorials, and textbook readings for Unit 4 (Human Equilibrium: Kinetics, Le Chatelier, and Blood Buffers).
SciencePractice.app: Use sciencepractice.app for targeted interactive drills.
Videos
Readings & Simulations
Supplemental simulations, video tutorials, and textbook readings for Unit 5 (Origin of the Elements: Stellar Fusion, Big Bang Evidence, and Nuclear Decay).
SciencePractice.app: Use sciencepractice.app for targeted interactive drills.
Videos
Readings & Simulations
Curated simulations, video tutorials, and textbook readings mapped directly across all 15 High School Chemistry Performance Expectations (HS-PS1, HS-PS2, HS-PS3, HS-PS4, and HS-ESS1).
SciencePractice.app: Use sciencepractice.app for interactive AI-powered quizzes, FRQs, and specialized simulations.
Cram Mode Review
Solve the written-response exam question from any lesson, then grade yourself against its scoring guide, all in one place.
Practice & Review
Strengthen your long-term memory with Spaced Repetition reviews and Interleaved Mixed Practice drills.
Spaced Retrieval (Due Today)
0 DueMixed Review Drill
Adaptive PE Mastery Suites
Launch Hub →Sequential competency practice targeting individual Next Generation Science Standards with diagnostic checks, tutoring hints, and cryptographically signed PDF receipts.
Accelerated Chemistry Practice Suites
Launch Studio →Deterministic, quantitative problem sets developed for Accelerated Chemistry students. Seeded PRNG decks, multi-attempt grading (5 attempts on math), worked solutions, and single-page certified receipts with anti-tamper SHA-256 verification seals.