W2

• Chemistry

  The science of matter dealing with the structure, composition, changes, and energy involved in matter.
• Inorganic Chemistry

  Study of all elements and their compounds excluding carbon.
• Organic Chemistry

  Study of carbon compounds, especially hydrocarbons and derivatives.
• Biochemistry

  Study of compounds in living organisms and their interactions.
• Physical Chemistry

  Focuses on physical processes in chemical reactions.
• Analytical Chemistry

  Study of substances and their quantities in a sample of matter.
• Ancient Babylonians


  Used chemistry for brewing wine and extracting metals from ores.
• Ancient Egyptians

  Applied chemistry in embalming, cosmetics, and paper-making.
• Ancient Greeks and Romans

  Used chemistry for making alloys and philosophical purposes.
• Middle Ages

  Alchemy was practiced for creating elixirs and transmuting metals.
• 16th Century


  Chemistry evolved into an analytical science.
• Robert Boyle


  Known for 'The Skeptical Chymist' and Boyle's Law.
• Amadeo Avogadro

  Introduced Avogadro's number in chemistry.
• Joseph Priestly

  Credited with the discovery of oxygen.
• Henry Cavendish


  Discovered hydrogen as an element.
• Antoine van Lavoisier


  Named oxygen and hydrogen, known as the Father of Modern Chemistry.
• Joseph Louis Proust


  Established the Law of Definite Proportion in chemistry.
• Democritus

  Proposed that matter is composed of small, indivisible particles called atomos.
• Solid


  Has a definite shape and volume with particles closely packed.
• Liquid

  Has an indefinite shape but definite volume with loosely packed particles.
• Gas

  Has an indefinite shape and volume with particles far apart.
• Physical Properties of Matter

  Includes intensive (boiling point, density) and extensive (shape, size) properties.
• Chemical Properties of Matter


  Properties like flammability and color change that alter the identity of matter.