Topics: material science, materials, Atomic Structure, Interatomic Bonding, atomic model, bonding energies, bonding forces, ionic bonding, covalent bond, metallic bond, Polymorphism, Allotropy, crystal structure, Polycrystalline Materials, crystals, corrosion, electrochemical cell

Topics: kinetic theory of matter, diffusion, compounds, experimental techniques, elements, separating mixtures, gels, sols, foams, emulsions, atomic structure, atomic bonding, Ionic bonding, covalent bonding, glasses, ceramics, metallic bonding, Stoichiometry, chemical calculations, relative atomic mass, reacting masses, calculating masses, moles, chemical equations, electricity, electrolysis, electroplating, chemical energetics, fossil fuels, chemical energy, cells, batteries, chemical reactions, enzymes, acid, base, alkalis, salt formation, crystal hydrates, salt solubility, titration, periodic table, Alkali metal, alkaline earth metals, halogens, noble gases, transition elements, metal, metal reactions, metal nitrate decomposition, metal carbonate decomposition, metal oxide decomposition, metal reactivity, metal waste, rusting of iron, air, water, ammonia, artificial fertilizer, water cycle, water hardness, sulfur, sulfur dioxide, sulfuric acid, inorganic carbon chemistry, limestone, carbonates, carbon dioxide, organic chemistry, alkanes, alkenes, Biotechnology, alcohols, Carboxylic acids, soaps, detergents, Condensation polymers, biopolymers, Pharmaceuticals, Experimental chemistry

Topics: Western education, indigenous African education, Nursery education primary education, secondary education, vocational education, Arabic education, Islamic education, nomadic education, special education, post-secondary education, higher education, Universal basic education, Public examination institutions, Nigerian educational system, New secondary school curriculum

Topics: chemistry, measurement, atoms, molecules, chemical formulas, chemical reactions, gaseous state, thermochemistry, quantu, theory, electron configuration, periodicity, ionic bonding, covalent bonding, molecular geometry, chemical bonding theory, states of matter, solutions, rates of reaction, chemical equilibrium, acid, bases, acid-base equilibria, solubility, complex-ion equilibria, thermodynamics, equilibrium, electrochemistry, nuclear chemistry, Main-group elements, transition elements, coordination compounds, organic chemistry, polymer materials

Topics: Glaucomatous Optic Neuropathy, Primary glaucomas, Secondary glaucomas, Childhood glaucomas, Secondary congenital glaucoma, Schiotz tonometer, GONIOSCOPY, antiglaucoma drugs

Topics: CONJUNCTIVA, OCULAR EXAMINATION, SCLERA, OPTICS, cornea, UVEAL TRACT, orbit, lacrimal apparatus, lymph nodes, eye lid, eye lashes, globe, lens, retina, vitreous, blurred optic disc margin, glaucoma, pupils, strabismus, pediatric Ophthalmology, ocular trauma, NEURO-OPHTHALMOLOGY, OCULAR EMERGENCIES, INTRAOCULAR MALIGNANCIES, OCULAR TOXICITY, Pinguecula, Pterygium, Subconjuctival Hemorrhage, Conjunctivitis, Bacterial Conjunctivitis, Viral Conjunctivitis, Chlamydia Conjunctivitis, Allergic Conjuctivitis, Giant Papillary Conjunctivitis, Vernal Conjunctivitis, Vision Assessment, Anterior Chamber Depth, pupils, Extraocular Muscles, Slit-Lamp Examination, Tonometry, Ophthalmoscopy, Fundoscopy, Episcleritis, Scleritis, Scleromalacia Perforans, Blue Sclerae, Staphyloma, Emmetropia, Refractive Errors, myopia, hyperopia, astigmatism, Presbyopia, Anisometropia, Refractive Eye Surgery, Corneal Abrasion, Recurrent Erosions, Corneal Ulcers, Herpes Simplex Keratitis, Herpes Zoster, Keratoconus, Arcus Senilis, Kayser-Fleischer Rings, Exophthalmos, Proptosis, Enophthalmos, Preseptal Cellulitis, Orbital Cellulitis, Keratoconjunctivitis Sicca, Dacryocystitis, Dacryoadenitis, Epiphora, Lid Swelling, Trichiasis, Entropion, Ectropion, Hordeolum, Chalazion, Blepharitis, Xanthelasma, Lid Carcinoma, Uveitis, Endophthalmitis, Cataract, Dislocated Lens, Vitreous Hemorrhage, Central Retinal Artery Occlusion, Branch Retinal Artery Occlusion, retina, Central Retinal Vein Occlusion, Retinal Detachment, Retinitis Pigmentosa, Roth Spots, Age-Related Macular Degeneration, Myelinated Nerve Fibres, drusen, Primary Open Angle Glaucoma, Primary Angle Closure Glaucoma, Secondary Open Angle Glaucoma, Secondary Angle Closure Glaucoma, Normal Pressure Glaucoma, Congenital Glaucoma, Tropia, phoria, Paralytic Strabismus, non-Paralytic Strabismus, Leukocoria, Nasolacrimal System Defects, Ophthalmia Neonatorum, rubella, blunt trauma, Penetrating Trauma, Hyphema, Blow Out Fractures, Sympathetic Ophthalmia, Visual Field Defects, Bitemporal Hemianopsia, Homonymous Hemianopsia, Internuclear Ophthalmoplegia, Nystagmus

Topics: soil properties, soil management, tropical environment, temperature, solar radiation, rainfall, tropical climates, vegetation, physiography, Anthropocene, biodiversity, climate change, demographics, Green Revolutions, Tropical Agroecosystems, land use, land-use change, Pedology, Physics, Chemistry, Biology, Laterite Paradigm, tropical soils, tropical soil research, Soil Taxonomy, soil classification systems, soil physical properties, soil temperature, soil structure, soil compaction, soil water, soil erosion, conservation, conservation agriculture, water, rainfed agriculture, irrigated agriculture, irrigation, mineralogy, clay minerals, mineralogy families, Anion Exchange Capacity, soil acidity capacity, Acid Soil Infertility, Liming, overliming, subsoil acidity, secondary acidity, soil biology, soil biodiversity, comminution, decomposition, nutrient elements transformation, soil structure regulation, organic carbon, carbon pools, carbon fractions, animal manures, composts, biochars, organic farming, soil fertility, nutrient cycling, nutrient uptake, determining fertilizer needs, nitrogen cycle, nitrogen pools, atmospheric deposition, biological nitrogen fixation, mineral fertilizers, organic nitrogen mineralization, soil nitrogen fertilizer reactions, Phosphorus Cycle, Phosphorus, Total Soil Phosphorus, inorganic Phosphorus, Phosphorus sorption, Phosphorus release, plant Phosphorus requirements, Phosphorus fertilization, sulfur cycle, sulfur sorption, Sulphur fertilization, Forest–Soil Nutrient Cycles, land clearing, Mechanized Land Clearing, Crop Yield Declines, Field Abandonment, Secondary Forest Fallows, puddling, flooding, rice cultivation systems, Nutrient Management, Yield Stagnation, Nitrogen Sequestration, Livestock-Based Tropical Systems, tropical pastures, Tropical Livestock Management Systems, pastoralism, Smallholder Mixed Crop–Livestock Systems, Extensive Pasture-Based Beef Production, Pasture Degradation, Crop–Pasture Integration, Tropical Tree-Based Systems, Plantation Forestry, Plantation Forestry Species, Agroforestry, Agroforestry Tree Species, Agroforestry Systems, Simultaneous Agroforestry, Sequential Agroforestry, tree crops

Topics: Organic Chemistry, chemical bond, quantum mechanics, atomic orbitals, electronic configuration, Pauli exclusion principle, molecular orbitals, covalent bond, hybrid orbitals, intramolecular forces, bond dissociation energy, homolysis, heterolysis, bonds polarity, melting point, intermolecular force, boiling point, solubility, acids, bases, isomerism, activation energy, hydrocarbons, methane structure, oxidation, heat of combustion, chlorination control, relative reactivity, reaction mechanisms, chlorination, free radicals, chain reactions inhibitors, transition state, molecular formula, chlorofluorocarbons, qualitative elemental analysis, quantitative elemental analysis, Alkene, free-radical substitution, ethane structure, Higher alkanes, alkyl groups, industrial source, Grignard reagent, halogenation, free radical stability, combustion, greenhouse effect, pyrolysis, cracking, alkane analysis, stereochemistry, stereoisomers, isomer number, tetrahedral carbon, optical activity, plane-polarized light, polarimeter, specific rotation, enantiomerism, chirality, chiral center, enantiomers, racemic modification, Diastereomers, meso structures, conformational isomers, optical purity, Alkyl halides, Nucleophilic aliphatic substitution, homolytic chemistry, heterolytic chemistry, Carbocations, Carbocations structure, alkyl halides analysis, alcohols, ethers, alcohol nomenclature, carbohydrates fermentation, Ethanol, alcohol preparation, alcohol reaction, alcohol oxidation, ethers preparation, Secondary Bonding, carbon-carbon double bond, Unsaturated hydrocarbon, ethylene structure, Propylene, Hybridization, orbital size, butylene, Geometric isomerism, alcohol dehydration, alkene reaction, hydrogen bromide addition, Hydrogenation, Electrophilic addition, Oxymercuration-demercuration, Hydroboration-oxidation, Alkene Free-radical polymerization, allylic Nucleophilic substitution, dienes, isoprene, isoprene rule, acetylene, Cyclic Aliphatic Compounds, cyclic compound stereoisomerism, cyclic ether, crown ethers, aromaticity, Benzene, aliphatic compounds, aromatic compounds, benzene structure, Kekule structure, Benzene ring, aromatic character, polynuclear aromatic hydrocarbons, Naphthalene, Quantitative elemental analysis, Electrophilic Aromatic Substitution, Friedel-Crafts alkylation mechanism, naphthalene electrophilic substitution, Aromatic-Aliphatic Compounds, Arenes, Spectroscopy, mass spectrum, electromagnetic spectrum, nuclear magnetic resonance spectrum, coupling consonants, chemical shift, aldehydes, ketones, Cannizaro reaction, Grignard reagents addition, Tetrahydropyranyl ethers, Iodoform test, Carboxylic Acids, Grignard synthesis, Dicarboxylic acids, acid chlorides, acid anhydrides, amides, esters, Transesterification, Aldol condensation, Wittig reaction, Crossed Claisen condensation, halides, ammonolysis, amide Hofmann degradation, Heterocyclic amines

Topics: temperature, temperature units, atomic mass, molar mass, molecular mass, relative atomic mass, emperical formula, chemical formula, limiting reactant, chemical reactions, gas, gas volume, pressure, standard atmospheric pressure, pressure measurement, gas law, Boyle's law, Charles's law, Gay-lussac law, combined gas law, ideal gas, ideal gas law, kinetic theory, avogardo hypothesis, molar volume, gas volume, gas stoichiometry, thermochemistry, heat, heat capacity, calorimetry, energy, enthalphy, thermochemical reactions, atomic structure, particle, waves, Pauli principle, Periodic law, Aufbau principle, Electron configuration, Atomic radii, ionization energy, electron affinity, chemical bonding, molecular structure, ionic compounds, covalence, valence-bond representation, molecular-orbital representation, π BONDING, MULTICENTER π BONDS, coordination compounds, isomerism, solid, liquid, crystals, crystal forces, Ionic Radii, oxidation-reduction, oxidation number, oxidizing agents, reducing agents, ionic notation, balancing equations, concentration, concentration scales, concentration units, dilution, volumetric standard solutions, vapor pressure lowering, freezing-point lowering, boiling-point lowering, Boiling-point elevation, osmotic pressure, Law of distribution, isomerism, functional groups, organic chemistry, biochemistry, thermodynamics, chemical equilibrium, Equilibrium constant, Le Chatelier's principle, acid, base, hydrolysis, buffer solution, indicators, weak polyprotic acids, tittration, complex ions, coordination complexes, electrochemistry, solubility product, electrical units, electrolysis, voltaic cells, standard half-cell potentials, free energy, Nonstandard potentials, rate of reactions, rate constant, energy of activation, Nuclear process, Binding energy, nuclear equations, radiochemistry

Topics: Chemistry, Scientific Method, SI Measurement System, chemical calculations, matter, energy, atom, atomic structure, periodic table, chemical reactions, mole concept, solutions, thermochemistry, Enthalpy, heat of reaction, acid, base, quantum theory, ionic bonding, Covalent Bonding, Intermolecular Forces, Condensed States, environmental chemistry, air pollution, water pollution, nuclear chemistry