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STEM QUIZ

  • States: Solids, Liquids, Gases, Plasma, and Bose-Einstein Condensate.
  • Composition: Atoms, molecules, elements, compounds, and mixtures.
  • Atomic Structure: Protons, neutrons, electrons, electronic configuration, and isotopes.
  • Organization: Modern Periodic Law, periods, groups, and trends (atomic size, valency).
  • Bonding: Ionic (electron transfer) and Covalent (electron sharing) bonds; polarity and electronegativity.
  • Equations: Writing and balancing chemical equations.
  • Types: Combination, Decomposition, Displacement, and Combustion reactions.
  • Energy: Exothermic vs. Endothermic reactions; fuels and fire control.
  • Redox: Oxidation and reduction processes, oxidizing/reducing agents, and oxidation numbers.
  • Kinetics: Reaction rates and factors affecting them (concentration, temperature, catalysts).
  • Solutions: Concentration terms (molarity, mass percentage).
  • Separation: Techniques such as filtration, distillation, centrifugation, and crystallization.
  • Hydrocarbons: Alkanes, alkenes, alkynes, and aromatic compounds (benzene).
  • Biomolecules: Carbohydrates (sugars, starch), Lipids (fats, oils), Proteins, and Nucleic Acids.
  • Food: Artificial sweeteners and glucose regulation.
  • Environment: Ozone layer depletion, water treatment, and pollution.
  • Nuclear Medicine: Radioisotopes, tracers, and medical imaging (PET scans).