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12th Grade · Science · Open Global Science
Advanced Experimental Design and Instrumentation
Track 1 of 17 · 8 lessons
8 lessons
Formulate theory-driven hypotheses, isolate multivariable controls, and design rigorous laboratory and simulation protocols using high-precision instrumentation.
Featured Diagrams
- 1Developing Testable Hypotheses from Scientific TheoriesUp nextStart
- 2Controlling Variables in Complex Multivariable SystemsPremiumNot started yet
- 3Designing Randomized Block and Factorial ExperimentsNot started yet
- 4Designing Computational Simulation ProtocolsNot started yet
- 5Selecting and Calibrating High-Precision InstrumentsNot started yet
- 6Digital Data Acquisition and Sampling RatesNot started yet
- 7Mitigating Systematic Bias with Double-Blind ProtocolsNot started yet
- 8Developing Comprehensive Laboratory Safety and Waste ProtocolsNot started yet
Advanced Kinematics, Vectors, and Planar Dynamics
Track 2 of 17 · 7 lessons
7 lessons
Resolve coplanar vector systems to model two-dimensional kinematics, translational equilibrium, and projectile motion under uniform gravitational fields.
Featured Diagrams
- 1Describing Motion Using Vectors: Displacement and VelocityUp nextStart
- 2Vector Addition and Resolution in Coplanar SystemsPremiumNot started yet
- 3Particles in Equilibrium Under Coplanar ForcesNot started yet
- 4Inclined Plane Dynamics with Static and Kinetic FrictionNot started yet
- 5Horizontal and Angled Projectile Motion KinematicsNot started yet
- 6Projectile Motion with Unequal Launch and Landing HeightsNot started yet
- 7Fluid Resistance and Terminal Velocity in FreefallNot started yet
Advanced Organic Reaction Mechanisms and Synthesis
Track 3 of 17 · 8 lessons
8 lessons
Formulate multi-step organic reaction pathways and detailed curly-arrow mechanisms across aliphatic, aromatic, and carbonyl chemistry.
- 1Free-Radical Substitution Mechanisms in AlkanesUp nextStart
- 2Electrophilic Addition Mechanisms in AlkenesPremiumNot started yet
- 3SN1 and SN2 Nucleophilic Substitution Mechanisms in HaloalkanesNot started yet
- 4Nucleophilic Addition Mechanisms in Carbonyl CompoundsNot started yet
- 5Benzene Structure, Delocalization, and Electrophilic Aromatic SubstitutionNot started yet
- 6Condensation Reactions and Esterification MechanismsNot started yet
- 7Stereoisomerism: Geometric (E/Z) and Optical ChiralityNot started yet
- 8Designing Multi-Step Organic Synthetic RoutesNot started yet
Advanced Stoichiometry and Analytical Quantitative Chemistry
Track 4 of 17 · 10 lessons
10 lessons
Master advanced stoichiometric problem-solving including empirical formulas, gas stoichiometry, percentage yield, atom economy, and volumetric multi-step titrations.
Featured Diagrams
- 1Determining Relative Formula Mass from Mass and Mole DataUp nextStart
- 2Determining Percentage Composition by Mass of CompoundsPremiumNot started yet
- 3Determining Empirical Formula from Reacting MassesNot started yet
- 4Determining Molecular Formulas Using Molar Mass DataNot started yet
- 5Deducing Stoichiometric Coefficients from Reacting MassesNot started yet
- 6Calculating Gas Volumes in Chemical ReactionsNot started yet
- 7Calculating Required Reactant Masses for Specified Product YieldNot started yet
- 8Evaluating Atom Economy in Synthetic PathwaysNot started yet
- 9Multi-Step Reacting Mass Calculations with Intermediate ProductsNot started yet
- 10Acid-Base and Redox Volumetric Titration CalculationsNot started yet
Animal Physiology: Homeostasis and Signaling
Track 5 of 17 · 10 lessons
10 lessons
Examine neurophysiological signaling, synaptic transmission, sensory transduction, and endocrine feedback in animal homeostasis.
Featured Diagrams
- 1Homeostatic Control Loops and Negative Feedback PrinciplesUp nextStart
- 2Thermoregulation and Metabolic Rate Control in EndothermsPremiumNot started yet
- 3Osmoregulation and Mammalian Nephron Countercurrent MultiplicationNot started yet
- 4Resting Membrane Potential and the Action Potential WaveformNot started yet
- 5Saltatory Conduction and Nerve Impulse Propagation VelocityNot started yet
- 6Unidirectional Impulse Transmission Across SynapsesNot started yet
- 7Synaptic Integration: Spatial and Temporal SummationNot started yet
- 8Sensory Receptors and Signal Transduction MechanismsNot started yet
- 9Endocrine Signaling and Blood Glucose HomeostasisNot started yet
- 10Hormone Action: Steroid Nuclear Receptors vs Peptide Second MessengersNot started yet
Atmospheric Chemistry, Ocean Dynamics, and Climate Tipping Points
Track 6 of 17 · 5 lessons
5 lessons
Model atmospheric radiative forcing, stratospheric ozone depletion kinetics, ocean thermohaline circulation, and cryospheric tipping points.
Featured Diagrams
- 1Stratospheric Thermal Structure and Radiative ForcingUp nextStart
- 2Rowland-Molina Kinetics and Stratospheric Ozone DepletionPremiumNot started yet
- 3Thermohaline Circulation and Global Heat TransportNot started yet
- 4Permafrost Thaw and Methane Hydrate Release LoopsNot started yet
- 5Systemic Risk Modelling and Climate Tipping PointsNot started yet
Atomic Structure, Quantum Orbitals, and Periodic Trends
Track 7 of 17 · 7 lessons
7 lessons
Explain quantum electronic configurations, orbital geometries, mass spectrometric isotopic analysis, and periodic periodicity in ionization energies and radii.
Featured Diagrams
- 1Average Atomic Mass and Isotopic AbundanceUp nextStart
- 2Quantum Shells, Subshells, and Orbital GeometriesPremiumNot started yet
- 3Aufbau Principle, Hund's Rule, and Pauli Exclusion PrincipleNot started yet
- 4Electron Configurations of Transition Metals and AnomaliesNot started yet
- 5First Ionisation Energy Trends Across Periods and Down GroupsNot started yet
- 6Successive Ionization Energies and Valence Shell IdentificationNot started yet
- 7Analyzing Periodic Trends in Atomic and Ionic RadiiNot started yet
Biodiversity, Phylogenetics, and Evolutionary Ecology
Track 8 of 17 · 9 lessons
9 lessons
Quantify biodiversity, construct phylogenetic trees, and evaluate organismal adaptations, ecological niches, and population dynamics.
Featured Diagrams
- 1Types of Biodiversity: Genetic, Species, and EcosystemUp nextStart
- 2Evaluating Morphological, Ecological, and Phylogenetic Species ConceptsPremiumNot started yet
- 3Cladistics, Phylogenetic Trees, and Molecular ClocksNot started yet
- 4Physiological Adaptations: Biochemical and Metabolic ModificationsNot started yet
- 5Anatomical and Behavioral Adaptations Across TaxaNot started yet
- 6Ecological Niche Theory: Fundamental vs Realized NichesNot started yet
- 7Population Growth Models: Exponential and Logistic DynamicsNot started yet
- 8Hardy-Weinberg Equilibrium and Population Genetics CalculationsNot started yet
- 9Ecological, Economic, Aesthetic, and Ethical Reasons for ConservationNot started yet
Biological Molecules and Enzyme Kinetics
Track 9 of 17 · 12 lessons
12 lessons
Analyze the chemical architecture, properties, and polymerization of biomolecules alongside the quantitative kinetics and regulation of enzyme catalysis.
Featured Diagrams
- 1Solvent Properties and Transport Mediums for Biochemical ReactionsUp nextStart
- 2Hydrogen Ions and Physiological pH RegulationPremiumNot started yet
- 3Inorganic Ions in Biological Structures and Enzyme CofactorsNot started yet
- 4Synthesis and Breakdown of Carbohydrates, Lipids, and ProteinsNot started yet
- 5Carbohydrate Stereochemistry and Polysaccharide ArchitectureNot started yet
- 6Lipid Structure: Triglycerides, Phospholipids, and SteroidsNot started yet
- 7Protein Structure: Primary Through Quaternary ConformationsNot started yet
- 8Nucleic Acid Polymerization and Nucleotide ChemistryNot started yet
- 9Enzyme Structure, Active Sites, and Catalytic ActionNot started yet
- 10Effect of pH on Active Site Ionization and ConformationNot started yet
- 11Michaelis-Menten Kinetics: Vmax and Km DeterminationNot started yet
- 12Enzyme Inhibition: Competitive, Non-Competitive, and AllostericNot started yet
Cell Cycle, Genetics, and Gene Regulation
Track 10 of 17 · 12 lessons
12 lessons
Examine chromosome replication, division, meiotic recombination, epigenetic transcriptional control, and mutation-driven speciation.
Featured Diagrams
- 1Eukaryotic Cell Cycle Phases and Checkpoint RegulationUp nextStart
- 2Leading and Lagging Strand Synthesis and Okazaki FragmentsPremiumNot started yet
- 3Mitotic Phase: Spindle Apparatus and Chromosome SegregationNot started yet
- 4Cytokinesis in Animal and Plant CellsNot started yet
- 5Meiotic Chromosome Dynamics: Crossing Over and Reduction DivisionNot started yet
- 6Meiotic Mechanisms of Genetic VariationNot started yet
- 7How the Genetic Code Directs Protein SynthesisNot started yet
- 8Prokaryotic Operon Models: Lac and Trp OperonsNot started yet
- 9Eukaryotic Transcriptional Regulation and EpigeneticsNot started yet
- 10Gene Mutations, Chromosomal Aberrations, and Phenotypic VariationNot started yet
- 11Analysing Phenotypic and Genetic Variation Using Standard DeviationNot started yet
- 12Allopatric and Sympatric Speciation PathwaysNot started yet
Cellular Bioenergetics: Respiration and Photosynthesis
Track 11 of 17 · 10 lessons
10 lessons
Synthesize the biochemical pathways of aerobic and anaerobic cellular respiration, light reactions, and photosynthetic carbon assimilation.
- 1Shared Metabolic and Biochemical Pathways Across PhylaUp nextStart
- 2Glycolysis and the Krebs CyclePremiumNot started yet
- 3Mitochondrial Electron Transport and Chemiosmotic ATP SynthesisNot started yet
- 4Anaerobic Respiration and Fermentation PathwaysNot started yet
- 5Chloroplast Ultrastructure and Pigment Light AbsorptionNot started yet
- 6Photolysis and Non-Cyclic PhotophosphorylationNot started yet
- 7Cyclic Photophosphorylation and ATP StoichiometryNot started yet
- 8The Calvin-Benson Cycle and Carbon Dioxide FixationNot started yet
- 9Synthesis of Organic Macromolecules from Triose PhosphateNot started yet
- 10Photorespiration and C4 / CAM Photosynthetic AdaptationsNot started yet
Cellular Ultrastructure, Membranes, and Transport
Track 12 of 17 · 9 lessons
9 lessons
Evaluate prokaryotic and eukaryotic compartmentalization and model selective transport across cellular membranes and specialized exchange surfaces.
Featured Diagrams
- 1Prokaryotic and Eukaryotic Ultrastructure ComparisonUp nextStart
- 2Endomembrane System and Vesicular Protein TraffickingPremiumNot started yet
- 3Fluid Mosaic Membrane Architecture and Selective PermeabilityNot started yet
- 4Passive Transport: Simple Diffusion and Facilitated ChannelsNot started yet
- 5Water Potential and Osmotic Equilibria in CellsNot started yet
- 6Primary and Secondary Active Transport MechanismsNot started yet
- 7Sodium and Potassium Ions in Active Transport and SignallingNot started yet
- 8Bulk Transport: Endocytosis, Exocytosis, and Receptor-Mediated UptakeNot started yet
- 9Surface Area to Volume Ratios and Exchange Surface AdaptationsNot started yet
Chemical Bonding, VSEPR Molecular Geometry, and Intermolecular Forces
Track 13 of 17 · 6 lessons
6 lessons
Predict 3D molecular shapes, bond angles, and dipoles using VSEPR theory, and relate bonding regimes to macroscopic bulk physical properties.
Featured Diagrams
- 1Covalent Bonding and Coordinate (Dative) Covalent BondsUp nextStart
- 2VSEPR Theory: Linear, Trigonal Planar, and Tetrahedral GeometriesPremiumNot started yet
- 3VSEPR Theory: Trigonal Bipyramidal and Octahedral ExpansionsNot started yet
- 4Bond Polarity, Molecular Polarity, and Intermolecular ForcesNot started yet
- 5London Dispersion, Dipole-Dipole, and Hydrogen Bonding ForcesNot started yet
- 6Bonding Models and Macroscopic Bulk Physical PropertiesNot started yet