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2011-10-15 23:13:50
Measurements Numbers Units

Unit 1
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  1. Scientific Method
    Systemic approach to the discovery of new information
  2. Hypothesis
    an attempt to explain an observation or series of observations
  3. Theory
    is a hypothesis supported by extensive testing that explains scientific facts that predict new facts
  4. Scientific law
    a summary of a large quantity of information
  5. Data
    facts resulting from an experiment
  6. Result
    Outcome of designed experiment often determined by individual bits of data
  7. Accuracy
    the nearness of an experiment value to the true value
  8. Uncertainty
    The degree of doubt in a single measurement
  9. Precision
    the degree of agreement among replicate measurement of the same quantity
  10. Density
    per unit of substance
  11. Specific Gravity
    Ratio of density in a substance to the density of water at 4 Celsius or any specific temperature
  12. Five Major Areas of Chemistry
    Biochemistry: is the study of life at the molecular level and the processes associated with life.

    Organic chemistry: is the study of carbon compounds

    Inorganic Chemistry: is the study of the elements of the periodic table and their compounds, except those of carbon.

    Analytical Chemistry: is the analysis of matter to determine its composition and the quantity of each component present.

    Physical Chemistry: is the branch of chemistry that attempts to explain the way in which matter behaves.
  13. Chemistry
    • Study of matter its chemical and physical properties, the chemical and
    • physical changes it undergoes, and the energy changes that accompany
    • those processes