Whatischem

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Whatischem

  1. 1. What Is Chemistry? The Next BIG Question
  2. 2. Science <ul><li>A system for exploring </li></ul><ul><li>and explaining the natural world. </li></ul>Astronomy Biology Chemistry Physics Pure Applied Knowledge Technology
  3. 3. Chemistry Is . . . <ul><li>. . . the science that investigates </li></ul><ul><li>the composition and interaction of </li></ul><ul><li>existing compounds and elements </li></ul><ul><li>and engages in the synthesis and </li></ul><ul><li>analysis of natural and artificial </li></ul><ul><li>compounds. --Webster’s </li></ul>OR It is the study of MATTER .
  4. 4. What Is This ‘Stuff’ We’ve Called Matter? <ul><li>One way of defining matter is as the </li></ul><ul><li>stuff of which everything is made. </li></ul>Another way to define it is as anything that you can detect with your senses (with the possible exception of sound ); this alternative gives rise to some very interesting questions . . .
  5. 5. The Interesting Implications of the Alternative Definition: <ul><li>Light can be perceived by our sense of sight </li></ul><ul><li>-- does this mean that light is matter? </li></ul><ul><li>What proof can you offer if you say it is? </li></ul>Air can be perceived by our senses in various ways -- does this mean that it is matter? What proof can you offer if you say it is?
  6. 6. The Branches of the Chemis - Tree Inorganic Organic Biochem. Analytical Physical
  7. 7. The Branches Defined: <ul><li>Inorganic -- </li></ul>Organic -- Biochem. -- Analytical -- Physical -- The study of all of the modern elements but carbon . The study of the chemistry of carbon and its compounds. The study of the chemistry of living things . Answers the questions “ What’s there ?” and “ How much ?” Uncovers the physical laws underlying changes in matter.
  8. 8. The Purposes of Chem Lab <ul><li>To help students visualize chemistry </li></ul><ul><li>(You learn by doing.) </li></ul><ul><li>To develop the ability to solve problems </li></ul><ul><li>To develop certain techniques </li></ul><ul><li>(measurement, purification, etc.) </li></ul><ul><li>which are essential to chemistry </li></ul><ul><li>To promote a teamwork approach to doing science (Cooperative learning) </li></ul>

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