Pudding&Clouds

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Pudding&Clouds

  1. 1. A Particulate World Lesson 1 : Pudding & Clouds Chemistry I A. Kuzara
  2. 2. Pudding & Clounds <ul><li>ChemCatalyst </li></ul><ul><ul><li>In the 5 th century BCE, a Greek philosopher named Leucippus and his student, Democritus, stated: </li></ul></ul><ul><ul><li>“ All matter is made up of particles that cannot be divided. These particles are called atoms.” </li></ul></ul><ul><ul><li>What do you think atoms are? </li></ul></ul>
  3. 3. Pudding & Clouds <ul><li>Atoms </li></ul><ul><ul><li>extremely small particles, cannot be seen, even with microscopes </li></ul></ul><ul><ul><li>from the Greek word for indivisible </li></ul></ul><ul><ul><li>often called smallest unit of matter </li></ul></ul><ul><ul><li>scientists use models supported by scientific evidence to describe atoms </li></ul></ul>
  4. 4. Pudding & Clouds
  5. 5. Pudding & Clouds
  6. 6. Pudding & Clouds <ul><li>Parts of an Atom </li></ul><ul><ul><li>Mostly empty space </li></ul></ul><ul><ul><li>Dense nucleus or protons and neutrons </li></ul></ul><ul><ul><li>Electrons around nucleus </li></ul></ul><ul><ul><li>Bohr Model is mostly commonly used </li></ul></ul>
  7. 7. Pudding & Clouds <ul><li>Wrap-Up </li></ul><ul><ul><li>All matter is made up of extremely small particles called atoms. These particles are too small to be seen even with a microscope. </li></ul></ul><ul><ul><li>Science is theoretical and dynamic. Models and theories are continually being revised, refined, or replaced with new models and theories. </li></ul></ul>

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