Pres2

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atms day 2

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Pres2

  1. 1. ATOMS Day 2 Democritus & Dalton
  2. 2. DEMOCRITUS Greek Philosopher – 440 BCE
  3. 3. EARLY OBSERVATIONS Wind pushes Food transforms Odors spread
  4. 4. ATOMS Small & Hard
  5. 5. COLOR? None. Different colors = Different arrangement of atoms
  6. 6. DIVIDE? Nope
  7. 7. WHAT’S IN BETWEEN Nothing. Because things spread out
  8. 8. DIFFERENT ELEMENTS Made of same stuff in different sizes and shapes
  9. 9. JOHN DALTON British Chemist –1803
  10. 10. OBSERVATION 1 Conservation of Mass
  11. 11. OBSERVATION 2 Atoms combine in certain proportions
  12. 12. SIMILAR TO DEMOCRITUS Small No color Can’t be divided Nothing in between
  13. 13. DIFFERENT ELEMENTS Have different atoms
  14. 14. ATOMS COMBINE To make all substances
  15. 15. DALTON’S NEW IDEAS Different elements have different atoms Atoms combine to make all substances
  16. 16. BIBLIOGRAPHY http://www.mlahanas.de/Greeks/Bios/DemocritusNaples.jpg http://www.flickr.com/photos/toastforbrekkie/866114974/sizes/m/ http://www.flickr.com/photos/kristofor808/3408333283/sizes/l/in/set-72057594056034692/ http://www.flickr.com/photos/ladesign/4197918856/ http://commons.wikimedia.org/wiki/File:John_Dalton.jpg http://crescentcityshapers.files.wordpress.com/2010/01/52831195_0504060006.jpg http://www.flickr.com/photos/ca_heckler/4087181226/sizes/l/

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