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Chemistry

Give your kids a fun and simple way to learn and improve with our child friendly design. Our grade K-8 courses put practice first so they can quickly test their knowledge and develop their skills further. Browse one of our topics to see what you kids will experience.
  1. 1Introduction to Chemistry
    1. 1.1Introduction to the periodic table
    2. 1.2Introduction to chemical formulae
    3. 1.3Unit conversions in chemistry
    4. 1.4Scientific notation and significant figures
  2. 2The Atom
    1. 2.1Atomic structure
    2. 2.2History and development of atomic theory
    3. 2.3Electronic structure: 288 rule
    4. 2.4Electronic structure: Subshells
    5. 2.5Ion formation
    6. 2.6Isotopes
  3. 3The Periodic Table and Elements
    1. 3.1History and development of the periodic table
    2. 3.2Structure of the periodic table
    3. 3.3Properties of elements in the periodic table
    4. 3.4Periodic trends: Atomic radius
    5. 3.5Periodic trends: Ionization energy
    6. 3.6Periodic trends: Electronegativity
  4. 4Compounds and Bonding
    1. 4.1Introduction to bonding
    2. 4.2Ionic and covalent bonding
    3. 4.3Intermolecular forces
    4. 4.4Lewis structures
    5. 4.5Molecular geometry
    6. 4.6Metallic bonding
    7. 4.7Alloys
    8. 4.8Polymers
    9. 4.9Structure and bonding of carbon
    10. 4.10Nanotechnology
  5. 5Chemical Reactions and Groups
    1. 5.1Introduction to chemical reactions
    2. 5.2Balancing chemical equations
    3. 5.3Types of chemical reactions
    4. 5.4Phases in chemical reactions
    5. 5.5Group 1: Alkali metals
    6. 5.6Group 7: The halogens
    7. 5.7Group 18: Noble gases
  6. 6Stoichiometry
    1. 6.1Introduction to stoichiometry
    2. 6.2Moles, mass and gas calculations
    3. 6.3Moles and molar concentration
    4. 6.4Moles, excess and limiting reagents
    5. 6.5Percentage yield and atom economy
  7. 7Basic Organic Chemistry
    1. 7.1Introduction to organic chemistry
    2. 7.2Alkanes
    3. 7.3Alkenes and unsaturated hydrocarbons
    4. 7.4Alcohols
    5. 7.5Haloalkanes
    6. 7.6Benzene and aromatic compounds
    7. 7.7Naming organic compounds and groups
  8. 8Solution Chemistry
    1. 8.1Introduction to solution chemistry and solubility
    2. 8.2Electrical conductivity
    3. 8.3Molarity
    4. 8.4Polarity
  9. 9Energetics, Kinetics and Reaction Rate
    1. 9.1Introduction to kinetics
    2. 9.2Factors affecting reaction rate
    3. 9.3Reaction rate graphs
    4. 9.4Enthalpy
    5. 9.5Boltzmann distribution
    6. 9.6Activation energy
    7. 9.7Catalysts
    8. 9.8Reaction mechanisms
  10. 10Equilibrium
    1. 10.1Introduction to dynamic equilibrium
    2. 10.2Le Chatelier's principle
    3. 10.3The equilibrium constant
    4. 10.4The Haber process
  11. 11Acid-Base Theory
    1. 11.1Introduction to acid-base theory
    2. 11.2Conjugate acids and bases
    3. 11.3Strong and weak acids and bases
    4. 11.4Autoionization of water
    5. 11.5Acid dissociation constant (Ka{K_a} and Kb{K_b})
    6. 11.6Relative strengths of acids and bases
    7. 11.7pH, pOH and antilogs
    8. 11.8Mixing strong acids and bases
    9. 11.9Hydrolysis
    10. 11.10Ka{K_a} and Kb{K_b} calculations
    11. 11.11Acid-base titration
    12. 11.12pH indicators
    13. 11.13Titration curves
    14. 11.14Buffer solutions
  12. 12Solubility Equilibria
    1. 12.1Solubility and ion concentration
    2. 12.2Predicting solubility
    3. 12.3Ionic equations
    4. 12.4Separating mixtures by precipitation
    5. 12.5Ksp Solubility product
    6. 12.6Predicting a precipitate
    7. 12.7Pollution and hard water treatment
    8. 12.8The common ion effect
  13. 13Redox and Electrochemistry
    1. 13.1Introduction to electrochemistry
    2. 13.2Oxidation number
    3. 13.3Half equations
    4. 13.4Balancing redox equations
    5. 13.5Chemical cells
    6. 13.6Redox titrations
    7. 13.7Predicting redox reactions using cell potential
    8. 13.8Electrolysis