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Chem
Updated: 9/29/2020
Chem
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Storyboard Text

  • Remember: A chemical change can't go back to the original state once the change occurs.
  • Chemical Changes
  • Shown in the green slides are examples of Chemical changes. On this slide the chemical change being shown is the burning of wood.
  • Another example of a chemical change is cooking an egg.
  • Chemical Changes
  • Another example of a chemical change is baking a cake.
  • Chemical Changes
  • A candle is both an example of a chemical change and a physical change. The part of the candle that is a chemically changed is the reaction of the wick burning giving off the scent of the candle(top). The part of the candle that is a physical change is the melting of the wax(bottom).
  • BOTH
  • Physical Changes
  • Shown in the yellow slides are examples of physical changes. Here the physical change being shown is ice turning into water.
  • Remember: A physical change is when the reaction is reversible.
  • Another example of a physical change is crumpling paper.
  • Physical Changes
  • Another example of a physical change is slicing bread.
  • Physical Changes
  • When the wax is melting the candle is turning from a solid to a liquid, therefor shrinking in size.
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