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Reviewed resources

• Centre of Mass, Momentum and Collisions Formula Sheet — Competishun. Quick revision deck covering centre of mass, linear momentum, impulse, collisions, restitution and variable-mass systems.
• Chemical Bonding Formula Sheet — Competishun. Comprehensive formula and concept review covering Lewis structures, ionic and covalent bonding, VSEPR, hybridisation, molecular orbitals and intermolecular forces.
• Chemical Equilibrium Formula Sheet — Competishun. Six-page revision sheet covering equilibrium constants, reaction quotient, degree of dissociation, Le Chatelier principle and temperature effects.
• Friction Quick Revision Formula Sheet — Competishun. Quick revision deck covering types of friction, limiting friction, rough inclines, rolling, connected blocks and standard applications.
• Fundamentals of Mathematics Formula Sheet — Competishun. Six-page foundation review covering number systems, intervals, algebra, inequalities, modulus, polynomials, logarithms and common results.
• GOC 1: Basic Organic Chemistry Formula Sheet — Competishun. Organic chemistry foundation review covering structure, bonding, electronic effects, resonance, hyperconjugation and aromaticity.
• GOC 2: Reactive Intermediates and Mechanism Formula Sheet — Competishun. Organic chemistry revision covering reactive intermediates, stability orders, acidity, basicity, leaving groups, energy profiles and reaction mechanisms.
• Ionic Equilibrium Formula Sheet — Competishun. Six-page formula and concept review covering acids, bases, pH, buffers, salt hydrolysis, solubility product and titration curves.
• Isomerism Formula Sheet — Competishun. Eight-page map of structural, geometrical, optical and conformational isomerism with standard identification rules.
• IUPAC Nomenclature Formula Sheet — Competishun. Thirteen-page organic nomenclature reference covering parent-chain selection, functional-group priority, cyclic compounds and common-name conversions.
• Mathematical Tools for Physics Formula Sheet — Competishun. Six-page physics reference covering trigonometry, calculus, vectors, standard graphs, approximations and algebraic tools.
• Mole Concept Formula Sheet — Competishun. Four-page reference covering the mole, stoichiometry, concentration terms, equivalent concept, gas relations and quantitative analysis.
• Newton's Laws of Motion Quick Revision Formula Sheet — Competishun. Quick revision deck covering free-body diagrams, equilibrium, pulleys, constraints, apparent weight and pseudo forces.
• Quadratic Equations Formula Sheet — Competishun. Four-page review of roots, discriminants, Vieta relations, graphs, common roots, transformations and standard quadratic results.
• Relations and Functions Formula Sheet — Competishun. Compact review of relations, functions, domains and ranges, composition, inverses, standard functions and graphical transformations.
• Sets Formula Sheet — Competishun. Five-page review of set notation, subsets, intervals, operations, algebra of sets, Venn diagrams and Cartesian products.
• Statistics Formula Sheet — Competishun. Rapid revision sheet covering central tendency, dispersion, variance, standard deviation and common statistics results.
• Structural Identification and Practical Organic Chemistry Formula Sheet — Competishun. Visual review of purification, qualitative and quantitative analysis, empirical formulas and structural identification in practical organic chemistry.
• Trigonometry Formula Sheet — Competishun. Thirteen-page reference covering angle measurement, identities, graphs, transformations, equations, inverse functions and triangle results.
• Work, Energy and Power Quick Revision Formula Sheet — Competishun. Quick revision deck covering work, kinetic and potential energy, conservation of energy, power, springs and common applications.
• A Letter to God - NCERT First Flight — NCERT. Official NCERT First Flight unit containing A Letter to God and its language-learning activities.
• A Question of Trust - NCERT Footprints Without Feet — NCERT. Official NCERT supplementary-reader chapter A Question of Trust with reading and comprehension activities.
• A Triumph of Surgery - NCERT Footprints Without Feet — NCERT. Official NCERT supplementary-reader chapter A Triumph of Surgery with reading and comprehension activities.
• Acids, Bases and Salts - NCERT Science — NCERT. Official NCERT chapter covering acid-base indicators, reactions, pH and the preparation and uses of common salts.
• Agriculture - NCERT Geography — NCERT. Official NCERT Geography chapter on farming systems, cropping patterns and major crops of India.
• Alcohols, Phenols and Ethers - NCERT Chemistry — NCERT. Official NCERT chapter covering nomenclature, preparation, properties and reactions of alcohols, phenols and ethers.
• Aldehydes, Ketones and Carboxylic Acids - NCERT Chemistry — NCERT. Official NCERT chapter covering preparation, properties and reactions of carbonyl compounds and carboxylic acids.
• Alternating Current - NCERT Physics — NCERT. Official NCERT chapter covering AC circuits, phasors, resonance, power and transformers.
• Amines - NCERT Chemistry — NCERT. Official NCERT chapter covering classification, preparation, properties and reactions of amines and diazonium salts.
• Anatomy of Flowering Plants - NCERT Biology — NCERT. Official NCERT chapter covering plant tissues, tissue systems and the internal anatomy of roots, stems and leaves.
• Animal Kingdom - NCERT Biology — NCERT. Official NCERT chapter covering the basis of animal classification and the major non-chordate and chordate groups.
• Application of Derivatives - NCERT Mathematics — NCERT. Official NCERT chapter applying derivatives to rates of change, monotonicity and maxima and minima.
• Application of Integrals - NCERT Mathematics — NCERT. Official NCERT chapter applying definite integrals to areas under curves and between curves.
• Areas Related to Circles - NCERT Mathematics — NCERT. Official NCERT chapter covering the areas of sectors and segments of circles.
• Arithmetic Progressions - NCERT Mathematics — NCERT. Official NCERT chapter covering arithmetic progressions, the nth term and sums of finite arithmetic series.
• Atoms - NCERT Physics — NCERT. Official NCERT chapter covering atomic models, line spectra and the Bohr model of hydrogen.
• Bholi - NCERT Footprints Without Feet — NCERT. Official NCERT supplementary-reader chapter Bholi with reading and comprehension activities.
• Binomial Theorem - NCERT Mathematics — NCERT. Official NCERT chapter covering binomial expansion for positive integral indices and general terms.
• Biodiversity and Conservation - NCERT Biology — NCERT. Official NCERT chapter covering biodiversity patterns, extinction, conservation priorities and in-situ and ex-situ protection.
• Biological Classification - NCERT Biology — NCERT. Official NCERT chapter covering systems of classification, biological kingdoms, viruses, viroids and lichens.
• Biomolecules - NCERT Biology — NCERT. Official NCERT chapter covering carbohydrates, proteins, lipids, nucleic acids, enzymes and cellular metabolism.
• Biomolecules - NCERT Chemistry — NCERT. Official NCERT chapter covering carbohydrates, proteins, enzymes, vitamins, nucleic acids and hormones.
• Biotechnology and its Applications - NCERT Biology — NCERT. Official NCERT chapter covering biotechnology in agriculture and medicine, transgenic organisms, ethics and patents.
• Biotechnology: Principles and Processes - NCERT Biology — NCERT. Official NCERT chapter covering genetic engineering principles, tools, recombinant DNA methods and bioprocessing.
• Body Fluids and Circulation - NCERT Biology — NCERT. Official NCERT chapter covering blood, lymph, the heart, circulation, cardiac regulation and circulatory disorders.
• Breathing and Exchange of Gases - NCERT Biology — NCERT. Official NCERT chapter covering the human respiratory system, gas exchange, transport and respiratory disorders.
• Carbon and its Compounds - NCERT Science — NCERT. Official NCERT chapter covering carbon bonding, homologous series, nomenclature, reactions and important carbon compounds.
• Cell Cycle and Cell Division - NCERT Biology — NCERT. Official NCERT chapter covering the cell cycle, mitosis, meiosis and their biological significance.
• Cell: The Unit of Life - NCERT Biology — NCERT. Official NCERT chapter covering cell theory, prokaryotic and eukaryotic cells, organelles and cellular organisation.
• Chemical Bonding and Molecular Structure - NCERT Chemistry — NCERT. Official NCERT chapter covering ionic and covalent bonding, molecular geometry, hybridisation and molecular orbital theory.
• Chemical Coordination and Integration - NCERT Biology — NCERT. Official NCERT chapter covering endocrine glands, hormones, feedback regulation and common endocrine disorders.
• Chemical Kinetics - NCERT Chemistry — NCERT. Official NCERT chapter covering reaction rates, rate laws, integrated equations, temperature dependence and collision theory.
• Chemical Reactions and Equations - NCERT Science — NCERT. Official NCERT chapter covering chemical equations, reaction types, oxidation, reduction and common effects of oxidation.
• Circles - NCERT Mathematics — NCERT. Official NCERT chapter covering tangents to circles and the number of tangents from an external point.
• Classification of Elements and Periodicity in Properties - NCERT Chemistry — NCERT. Official NCERT chapter covering the periodic law, periodic table and trends in atomic and chemical properties.
• Complex Numbers and Quadratic Equations - NCERT Mathematics — NCERT. Official NCERT chapter covering complex numbers, the Argand plane and quadratic equations with complex roots.
• Conic Sections - NCERT Mathematics — NCERT. Official NCERT chapter covering circles, parabolas, ellipses and hyperbolas as conic sections.
• Consumer Rights - NCERT Economics — NCERT. Official NCERT Economics chapter on consumer protection, standardisation and the consumer movement.
• Continuity and Differentiability - NCERT Mathematics — NCERT. Official NCERT chapter covering continuity, differentiability, composite functions and higher-order derivatives.
• Control and Coordination - NCERT Science — NCERT. Official NCERT chapter covering the nervous system, hormones, plant responses and coordination in living organisms.